Apple have changed the name of the certificate that is issued. You can now use the same certificate for both development and production. While you can still request a development only certificate you can no longer request a production only certificate.

I think this is the better way to keep backwards compatibility if we go with this approach, it is working for my case and hope will work for you. Also pretty easy to understand.

if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)
{
    [[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge) categories:nil]];
    [[UIApplication sharedApplication] registerForRemoteNotifications];
}
else
{
    [[UIApplication sharedApplication] registerForRemoteNotificationTypes:
         (UIUserNotificationTypeBadge | UIUserNotificationTypeSound | UIUserNotificationTypeAlert)];
}

Ok, I faced the problem before. Since push notification requires serverside implementation, for me recreating profile was not an option. So I found this solution WITHOUT creating new provisioning profile.

Xcode is not properly selecting the correct provisioning profile although we are selecting it correctly.

First go to organizer. On the Devices tab, Provisioning profile from Library list, select the intended profile we are trying to use. Right click on it and then "Reveal Profile in Finder".

The correct profile will be selected in the opened Finder window. Note the name.

Now go to Xcode > Log Navigator. Select filter for "All" and "All Messages". Now in the last phase(Build Target) look for the step called "ProcessProductPackaging" expand it. Note the provisioning profile name. They should NOT match if you are having the error.

Now in the Opened Finder window delete the rogue provisioning profile which Xcode is using. Now build again. The error should be resolved. If not repeat the process to find another rogue profile to remove it.

Hope this helps.

Google Chrome now supports the W3C standard for push notifications.

http://www.w3.org/TR/push-api/

Here is what I did, From:blog.boxedice.com and "iPhone Advanced Projects" chapter 10 byJoe Pezzillo.

With the aps_developer_identity.cer in the keychain:

1. Launch Keychain Access from your local Mac and from the login keychain, filter by the Certificates category. You will see an expandable option called “Apple Development Push Services”
2. Right click on “Apple Development Push Services” > Export “Apple Development Push Services ID123". Save this as apns-dev-cert.p12 file somewhere you can access it. There is no need to enter a password.

3. The next command generates the cert in Mac’s Terminal for PEM format (Privacy Enhanced Mail Security Certificate):

   openssl pkcs12 -in apns-dev-cert.p12 -out apns-dev-cert.pem -nodes -clcerts
   

On the server set the file permission of this unencrypted key by using chmod 400.

In my case, even I created a myapp.profile and set it in xcode manually, and when I chose "show in finder" and located the embedded.mobileprovision and checked to make sure aps-environment is there in the file, the error was still there.

I then went to developer center and found that the status of XC: myapp.profile is invalid. I updated it and installed the XC: myapp.profile and it worked fine.

I think xcode is trying to manage the profile and you need to check the provisioning profile when you submit your binary to store, and ensure it is the correct one. And according to other answers it can be caused for various reasons so it can be really annoying.

UPDATE:

Once you've signed with the downloaded profile and confirmed that aps-environment was there when you try to submit to App Store, you should be able to change the profile and code signing entity to automatic and iOS Developer. Hope it can be improved in Xcode 7.

I try to support iOS 10 and above using solution provide by @Shaheen Ghiassy but find deprivation issue enabledRemoteNotificationTypes. So, the solution I find by using isRegisteredForRemoteNotifications instead of enabledRemoteNotificationTypes which deprecated in iOS 8. Below is my updated solution that worked perfectly for me:

- (BOOL)notificationServicesEnabled {
    BOOL isEnabled = NO;
    if ([[UIApplication sharedApplication] respondsToSelector:@selector(currentUserNotificationSettings)]){
        UIUserNotificationSettings *notificationSettings = [[UIApplication sharedApplication] currentUserNotificationSettings];

        if (!notificationSettings || (notificationSettings.types == UIUserNotificationTypeNone)) {
            isEnabled = NO;
        } else {
            isEnabled = YES;
        }
    } else {

        if ([[UIApplication sharedApplication] isRegisteredForRemoteNotifications]) {
            isEnabled = YES;
        } else{
            isEnabled = NO;
        }
    }
    return isEnabled;
}

And we can call this function easily and be accessing its Bool value and can convert it into the string value by this:

NSString *str = [self notificationServicesEnabled] ? @"YES" : @"NO";

Hope it will help others too :) Happy coding.

So, After taking a while I figured out that the old push certificate generating service also exists.

You get two options:

• Apple Push Notification Authentication Key (Sandbox & Production)
• Apple Push Notification service SSL (Sandbox & Production)

Those who want to achieve the old style .p12 certificate can get it from second option. I have not used the first option yet as most of the third-party push notification service providers still need the .p12 format certificate.

You need to search the World from the top right search bar and delete the expired certificate. Make sure you selected Login and All items.

In your AppDelegate, in the didRegisterForRemoteNotificationsWithDeviceToken method:

Updated for Swift:

func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
    print("\(deviceToken.reduce("") { $0 + String(format: "%02.2hhx", arguments: [$1]) })")
}

You can change your target's launch settings in "Manage Scheme" to Wait for <app>.app to be launched manually, which allows you debug by setting a breakpoint in application: didReceiveRemoteNotification: fetchCompletionHandler: and sending the push notification to trigger the background launch.

I'm not sure it'll solve the issue, but it may assist you with debugging for now.

When you have repeated notifications at future, you do not want to cancel those notifications, you can clear the item in notification center by:

func clearNotificationCenter() {
    UIApplication.sharedApplication().applicationIconBadgeNumber = 1
    UIApplication.sharedApplication().applicationIconBadgeNumber = 0
}

You cannot clear notification when your app is open in the foreground by calling the method below immediately after receiving local notification, otherwise you will receive tens of hundreds of notifications. Maybe because the same notification apply again, and now is the time to fire, so you keep fire, apply again, fire, apply....:

[UIApplication sharedApplication].scheduledLocalNotifications = [UIApplication sharedApplication].scheduledLocalNotifications;

There is only one reliable way, and it works only for iOS 10+ :

Using UNUserNotificationCenter implement UNUserNotificationCenterDelegate method:

- (void) userNotificationCenter:(UNUserNotificationCenter *)center didReceiveNotificationResponse:(UNNotificationResponse *)response withCompletionHandler:(void (^)(void))completionHandler {

    //Here you can get your original push if you need to
    NSDictionary* pusDict = response.notification.request.content.userInfo;

    if ([response.actionIdentifier isEqualToString: UNNotificationDefaultActionIdentifier]) {
        //User tapped the notification
    } else if ([response.actionIdentifier isEqualToString: UNNotificationDismissActionIdentifier]) {
        //User dismissed the notification 
    } else if ([response.actionIdentifier isEqualToString: MYCustomActionId]) {
        //User chose my custom defined action
    }
    ...
}

collect_set can help to get unique values from a given column of pyspark.sql.DataFrame df.select(F.collect_set("column").alias("column")).first()["column"]

a bit example

var audio = new Audio('https://www.soundhelix.com/examples/mp3/SoundHelix-Song-1.mp3')_x000D_
_x000D_
if (audio.paused) {_x000D_
  audio.play()_x000D_
} else {_x000D_
  audio.pause()_x000D_
}

1. Go to properties of Project which your working
2. Choose the Deployment Assembly menu and Click on add button
3. opt the Java Build Path Entries and Click on Maven Dependencies
4. Build the project and run

The answers above point out how the block size can impact performance and suggest a common heuristic for its choice based on occupancy maximization. Without wanting to provide the criterion to choose the block size, it would be worth mentioning that CUDA 6.5 (now in Release Candidate version) includes several new runtime functions to aid in occupancy calculations and launch configuration, see

CUDA Pro Tip: Occupancy API Simplifies Launch Configuration

One of the useful functions is cudaOccupancyMaxPotentialBlockSize which heuristically calculates a block size that achieves the maximum occupancy. The values provided by that function could be then used as the starting point of a manual optimization of the launch parameters. Below is a little example.

#include <stdio.h>

/************************/
/* TEST KERNEL FUNCTION */
/************************/
__global__ void MyKernel(int *a, int *b, int *c, int N) 
{ 
    int idx = threadIdx.x + blockIdx.x * blockDim.x; 

    if (idx < N) { c[idx] = a[idx] + b[idx]; } 
} 

/********/
/* MAIN */
/********/
void main() 
{ 
    const int N = 1000000;

    int blockSize;      // The launch configurator returned block size 
    int minGridSize;    // The minimum grid size needed to achieve the maximum occupancy for a full device launch 
    int gridSize;       // The actual grid size needed, based on input size 

    int* h_vec1 = (int*) malloc(N*sizeof(int));
    int* h_vec2 = (int*) malloc(N*sizeof(int));
    int* h_vec3 = (int*) malloc(N*sizeof(int));
    int* h_vec4 = (int*) malloc(N*sizeof(int));

    int* d_vec1; cudaMalloc((void**)&d_vec1, N*sizeof(int));
    int* d_vec2; cudaMalloc((void**)&d_vec2, N*sizeof(int));
    int* d_vec3; cudaMalloc((void**)&d_vec3, N*sizeof(int));

    for (int i=0; i<N; i++) {
        h_vec1[i] = 10;
        h_vec2[i] = 20;
        h_vec4[i] = h_vec1[i] + h_vec2[i];
    }

    cudaMemcpy(d_vec1, h_vec1, N*sizeof(int), cudaMemcpyHostToDevice);
    cudaMemcpy(d_vec2, h_vec2, N*sizeof(int), cudaMemcpyHostToDevice);

    float time;
    cudaEvent_t start, stop;
    cudaEventCreate(&start);
    cudaEventCreate(&stop);
    cudaEventRecord(start, 0);

    cudaOccupancyMaxPotentialBlockSize(&minGridSize, &blockSize, MyKernel, 0, N); 

    // Round up according to array size 
    gridSize = (N + blockSize - 1) / blockSize; 

    cudaEventRecord(stop, 0);
    cudaEventSynchronize(stop);
    cudaEventElapsedTime(&time, start, stop);
    printf("Occupancy calculator elapsed time:  %3.3f ms \n", time);

    cudaEventRecord(start, 0);

    MyKernel<<<gridSize, blockSize>>>(d_vec1, d_vec2, d_vec3, N); 

    cudaEventRecord(stop, 0);
    cudaEventSynchronize(stop);
    cudaEventElapsedTime(&time, start, stop);
    printf("Kernel elapsed time:  %3.3f ms \n", time);

    printf("Blocksize %i\n", blockSize);

    cudaMemcpy(h_vec3, d_vec3, N*sizeof(int), cudaMemcpyDeviceToHost);

    for (int i=0; i<N; i++) {
        if (h_vec3[i] != h_vec4[i]) { printf("Error at i = %i! Host = %i; Device = %i\n", i, h_vec4[i], h_vec3[i]); return; };
    }

    printf("Test passed\n");

}

EDIT

The cudaOccupancyMaxPotentialBlockSize is defined in the cuda_runtime.h file and is defined as follows:

template<class T>
__inline__ __host__ CUDART_DEVICE cudaError_t cudaOccupancyMaxPotentialBlockSize(
    int    *minGridSize,
    int    *blockSize,
    T       func,
    size_t  dynamicSMemSize = 0,
    int     blockSizeLimit = 0)
{
    return cudaOccupancyMaxPotentialBlockSizeVariableSMem(minGridSize, blockSize, func, __cudaOccupancyB2DHelper(dynamicSMemSize), blockSizeLimit);
}

The meanings for the parameters is the following

minGridSize     = Suggested min grid size to achieve a full machine launch.
blockSize       = Suggested block size to achieve maximum occupancy.
func            = Kernel function.
dynamicSMemSize = Size of dynamically allocated shared memory. Of course, it is known at runtime before any kernel launch. The size of the statically allocated shared memory is not needed as it is inferred by the properties of func.
blockSizeLimit  = Maximum size for each block. In the case of 1D kernels, it can coincide with the number of input elements.

Note that, as of CUDA 6.5, one needs to compute one's own 2D/3D block dimensions from the 1D block size suggested by the API.

Note also that the CUDA driver API contains functionally equivalent APIs for occupancy calculation, so it is possible to use cuOccupancyMaxPotentialBlockSize in driver API code in the same way shown for the runtime API in the example above.

I think the easiest way is to move the avd folder from C:\Users[USER].android folder to your desired location then create a symbolic link to it in C:\Users[USER].android with the same name.

If you wonder how to do this, first install Link Shell Extension. After folder movement right click on it and select Pick Link Source then right click in .android folder and in Drop As... sub menu select Symbolic Link.

There may be two situations.

1. No build.xml is present in the current directory
2. Your ant configuration file has diffrent name.

Please see and confim the same. In the case one you have to find where your build file is located and in the case 2, You will have to run command ant -f <your build file name>.

You can try this

set @duration= 112000
SELECT 
   "Time" = cast (@duration/3600 as varchar(3)) +'H'
         + Case 
       when ((@duration%3600 )/60)<10 then
                 '0'+ cast ((@duration%3600 )/60)as varchar(3))
       else 
               cast ((@duration/60) as varchar(3))
       End

If you are trying to call another exe file inside the bat-file. You must use SET Path inside the bat-file that you are calling. set Path should point into the directory there the exe-file is located:

set PATH=C:\;C:\DOS     {Sets C:\;C:\DOS as the current search path.} 

synchronized simple means no two threads can access the block/method simultaneously. When we say any block/method of a class is synchronized it means only one thread can access them at a time. Internally the thread which tries to access it first take a lock on that object and as long as this lock is not available no other thread can access any of the synchronized methods/blocks of that instance of the class.

Note another thread can access a method of the same object which is not defined to be synchronized. A thread can release the lock by calling

Object.wait()

This may be helpful to you:

<script type="text/javascript">
    function Showalert() {
        alert('Profile not parsed!!');
        window.parent.parent.parent.location.reload();
    }
    function ImportingDone() {
        alert('Importing done successfull.!');
        window.parent.parent.parent.location.reload();
    }
</script>

if (SelectedRowCount == 0)
{
    ScriptManager.RegisterStartupScript(this, GetType(), "displayalertmessage", "Showalert();", true);
}
else
{
    ScriptManager.RegisterStartupScript(this, GetType(), "importingdone", "ImportingDone();", true);
}

try this it is working

 MySqlCommand dbcmd = _conn.CreateCommand();
    dbcmd.CommandText = sqlCommandString;
    dbcmd.ExecuteNonQuery();
    long imageId = dbcmd.LastInsertedId;

util.print can be used also. Read: http://nodejs.org/api/util.html#util_util_print

util.print([...])# A synchronous output function. Will block the process, cast each argument to a string then output to stdout. Does not place newlines after each argument.

An example:

// get total length
var len = parseInt(response.headers['content-length'], 10);
var cur = 0;

// handle the response
response.on('data', function(chunk) {
  cur += chunk.length;
  util.print("Downloading " + (100.0 * cur / len).toFixed(2) + "% " + cur + " bytes\r");
});

I reached here for the problem Kudo mentioned.

I'm sharing my experience for others.

orElse, or orElseGet, that is the question:

static String B() {
    System.out.println("B()...");
    return "B";
}

public static void main(final String... args) {
    System.out.println(Optional.of("A").orElse(B()));
    System.out.println(Optional.of("A").orElseGet(() -> B()));
}

prints

B()...
A
A

orElse evaluates the value of B() interdependently of the value of the optional. Thus, orElseGet is lazy.

If you're talking about an HTTP request, you can find the request host in:

request.headers.host

But that relies on an incoming request.

More at http://nodejs.org/docs/v0.4.12/api/http.html#http.ServerRequest

If you're looking for machine/native information, try the process object.

I wrote a DateTextField component.

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.Frame;
import java.awt.GridLayout;
import java.awt.Point;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JSpinner;
import javax.swing.JTextField;
import javax.swing.SpinnerNumberModel;
import javax.swing.SwingConstants;
import javax.swing.SwingUtilities;
import javax.swing.border.LineBorder;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

public class DateTextField extends JTextField {

    private static String DEFAULT_DATE_FORMAT = "MM/dd/yyyy";
    private static final int DIALOG_WIDTH = 200;
    private static final int DIALOG_HEIGHT = 200;

    private SimpleDateFormat dateFormat;
    private DatePanel datePanel = null;
    private JDialog dateDialog = null;

    public DateTextField() {
        this(new Date());
    }

    public DateTextField(String dateFormatPattern, Date date) {
        this(date);
        DEFAULT_DATE_FORMAT = dateFormatPattern;
    }

    public DateTextField(Date date) {
        setDate(date);
        setEditable(false);
        setCursor(new Cursor(Cursor.HAND_CURSOR));
        addListeners();
    }

    private void addListeners() {
        addMouseListener(new MouseAdapter() {
            public void mouseClicked(MouseEvent paramMouseEvent) {
                if (datePanel == null) {
                    datePanel = new DatePanel();
                }
                Point point = getLocationOnScreen();
                point.y = point.y + 30;
                showDateDialog(datePanel, point);
            }
        });
    }

    private void showDateDialog(DatePanel dateChooser, Point position) {
        Frame owner = (Frame) SwingUtilities
                .getWindowAncestor(DateTextField.this);
        if (dateDialog == null || dateDialog.getOwner() != owner) {
            dateDialog = createDateDialog(owner, dateChooser);
        }
        dateDialog.setLocation(getAppropriateLocation(owner, position));
        dateDialog.setVisible(true);
    }

    private JDialog createDateDialog(Frame owner, JPanel contentPanel) {
        JDialog dialog = new JDialog(owner, "Date Selected", true);
        dialog.setUndecorated(true);
        dialog.getContentPane().add(contentPanel, BorderLayout.CENTER);
        dialog.pack();
        dialog.setSize(DIALOG_WIDTH, DIALOG_HEIGHT);
        return dialog;
    }

    private Point getAppropriateLocation(Frame owner, Point position) {
        Point result = new Point(position);
        Point p = owner.getLocation();
        int offsetX = (position.x + DIALOG_WIDTH) - (p.x + owner.getWidth());
        int offsetY = (position.y + DIALOG_HEIGHT) - (p.y + owner.getHeight());

        if (offsetX > 0) {
            result.x -= offsetX;
        }

        if (offsetY > 0) {
            result.y -= offsetY;
        }

        return result;
    }

    private SimpleDateFormat getDefaultDateFormat() {
        if (dateFormat == null) {
            dateFormat = new SimpleDateFormat(DEFAULT_DATE_FORMAT);
        }
        return dateFormat;
    }

    public void setText(Date date) {
        setDate(date);
    }

    public void setDate(Date date) {
        super.setText(getDefaultDateFormat().format(date));
    }

    public Date getDate() {
        try {
            return getDefaultDateFormat().parse(getText());
        } catch (ParseException e) {
            return new Date();
        }
    }

    private class DatePanel extends JPanel implements ChangeListener {
        int startYear = 1980;
        int lastYear = 2050;

        Color backGroundColor = Color.gray;
        Color palletTableColor = Color.white;
        Color todayBackColor = Color.orange;
        Color weekFontColor = Color.blue;
        Color dateFontColor = Color.black;
        Color weekendFontColor = Color.red;

        Color controlLineColor = Color.pink;
        Color controlTextColor = Color.white;

        JSpinner yearSpin;
        JSpinner monthSpin;
        JButton[][] daysButton = new JButton[6][7];

        DatePanel() {
            setLayout(new BorderLayout());
            setBorder(new LineBorder(backGroundColor, 2));
            setBackground(backGroundColor);

            JPanel topYearAndMonth = createYearAndMonthPanal();
            add(topYearAndMonth, BorderLayout.NORTH);
            JPanel centerWeekAndDay = createWeekAndDayPanal();
            add(centerWeekAndDay, BorderLayout.CENTER);

            reflushWeekAndDay();
        }

        private JPanel createYearAndMonthPanal() {
            Calendar cal = getCalendar();
            int currentYear = cal.get(Calendar.YEAR);
            int currentMonth = cal.get(Calendar.MONTH) + 1;

            JPanel panel = new JPanel();
            panel.setLayout(new FlowLayout());
            panel.setBackground(controlLineColor);

            yearSpin = new JSpinner(new SpinnerNumberModel(currentYear,
                    startYear, lastYear, 1));
            yearSpin.setPreferredSize(new Dimension(56, 20));
            yearSpin.setName("Year");
            yearSpin.setEditor(new JSpinner.NumberEditor(yearSpin, "####"));
            yearSpin.addChangeListener(this);
            panel.add(yearSpin);

            JLabel yearLabel = new JLabel("Year");
            yearLabel.setForeground(controlTextColor);
            panel.add(yearLabel);

            monthSpin = new JSpinner(new SpinnerNumberModel(currentMonth, 1,
                    12, 1));
            monthSpin.setPreferredSize(new Dimension(35, 20));
            monthSpin.setName("Month");
            monthSpin.addChangeListener(this);
            panel.add(monthSpin);

            JLabel monthLabel = new JLabel("Month");
            monthLabel.setForeground(controlTextColor);
            panel.add(monthLabel);

            return panel;
        }

        private JPanel createWeekAndDayPanal() {
            String colname[] = { "S", "M", "T", "W", "T", "F", "S" };
            JPanel panel = new JPanel();
            panel.setFont(new Font("Arial", Font.PLAIN, 10));
            panel.setLayout(new GridLayout(7, 7));
            panel.setBackground(Color.white);

            for (int i = 0; i < 7; i++) {
                JLabel cell = new JLabel(colname[i]);
                cell.setHorizontalAlignment(JLabel.RIGHT);
                if (i == 0 || i == 6) {
                    cell.setForeground(weekendFontColor);
                } else {
                    cell.setForeground(weekFontColor);
                }
                panel.add(cell);
            }

            int actionCommandId = 0;
            for (int i = 0; i < 6; i++)
                for (int j = 0; j < 7; j++) {
                    JButton numBtn = new JButton();
                    numBtn.setBorder(null);
                    numBtn.setHorizontalAlignment(SwingConstants.RIGHT);
                    numBtn.setActionCommand(String
                            .valueOf(actionCommandId));
                    numBtn.setBackground(palletTableColor);
                    numBtn.setForeground(dateFontColor);
                    numBtn.addActionListener(new ActionListener() {
                        public void actionPerformed(ActionEvent event) {
                            JButton source = (JButton) event.getSource();
                            if (source.getText().length() == 0) {
                                return;
                            }
                            dayColorUpdate(true);
                            source.setForeground(todayBackColor);
                            int newDay = Integer.parseInt(source.getText());
                            Calendar cal = getCalendar();
                            cal.set(Calendar.DAY_OF_MONTH, newDay);
                            setDate(cal.getTime());

                            dateDialog.setVisible(false);
                        }
                    });

                    if (j == 0 || j == 6)
                        numBtn.setForeground(weekendFontColor);
                    else
                        numBtn.setForeground(dateFontColor);
                    daysButton[i][j] = numBtn;
                    panel.add(numBtn);
                    actionCommandId++;
                }

            return panel;
        }

        private Calendar getCalendar() {
            Calendar calendar = Calendar.getInstance();
            calendar.setTime(getDate());
            return calendar;
        }

        private int getSelectedYear() {
            return ((Integer) yearSpin.getValue()).intValue();
        }

        private int getSelectedMonth() {
            return ((Integer) monthSpin.getValue()).intValue();
        }

        private void dayColorUpdate(boolean isOldDay) {
            Calendar cal = getCalendar();
            int day = cal.get(Calendar.DAY_OF_MONTH);
            cal.set(Calendar.DAY_OF_MONTH, 1);
            int actionCommandId = day - 2 + cal.get(Calendar.DAY_OF_WEEK);
            int i = actionCommandId / 7;
            int j = actionCommandId % 7;
            if (isOldDay) {
                daysButton[i][j].setForeground(dateFontColor);
            } else {
                daysButton[i][j].setForeground(todayBackColor);
            }
        }

        private void reflushWeekAndDay() {
            Calendar cal = getCalendar();
            cal.set(Calendar.DAY_OF_MONTH, 1);
            int maxDayNo = cal.getActualMaximum(Calendar.DAY_OF_MONTH);
            int dayNo = 2 - cal.get(Calendar.DAY_OF_WEEK);
            for (int i = 0; i < 6; i++) {
                for (int j = 0; j < 7; j++) {
                    String s = "";
                    if (dayNo >= 1 && dayNo <= maxDayNo) {
                        s = String.valueOf(dayNo);
                    }
                    daysButton[i][j].setText(s);
                    dayNo++;
                }
            }
            dayColorUpdate(false);
        }

        public void stateChanged(ChangeEvent e) {
            dayColorUpdate(true);

            JSpinner source = (JSpinner) e.getSource();
            Calendar cal = getCalendar();
            if (source.getName().equals("Year")) {
                cal.set(Calendar.YEAR, getSelectedYear());
            } else {
                cal.set(Calendar.MONTH, getSelectedMonth() - 1);
            }
            setDate(cal.getTime());
            reflushWeekAndDay();
        }
    }
}

As long as you aren't using the NDK you can just ignore that warning.

By the way: This warning has nothing to do with parallel installations.

Agree that

Options -Indexes

should work if the main server is configured to allow option overrides, but if not, this will hide all files from the listing (so every directory appears empty):

IndexIgnore *

i myself do it with directx and think it's as fast as you would want it to be. i don't have a quick code sample, but i found this which should be useful. the directx11 version should not differ a lot, directx9 maybe a little more, but thats the way to go

Unlike proposed by Nicolas, the meta tag isn’t actually ignored by the browsers. However, the Content-Type HTTP header always has precedence over the presence of a meta tag in the document.

So make sure that you either send the correct encoding via the HTTP header, or don’t send this HTTP header at all (not recommended). The meta tag is mainly a fallback option for local documents which aren’t sent via HTTP traffic.

Using HTML entities should also be considered a workaround – that’s tiptoeing around the real problem. Configuring the web server properly prevents a lot of nuisance.

String.toCharArray() creates new char array, means allocation of memory of string length, then copies original char array of string using System.arraycopy() and then returns this copy to caller. String.charAt() returns character at position i from original copy, that's why String.charAt() will be faster than String.toCharArray(). Although, String.toCharArray() returns copy and not char from original String array, where String.charAt() returns character from original char array. Code below returns value at the specified index of this string.

public char charAt(int index) {
    if ((index < 0) || (index >= value.length)) {
        throw new StringIndexOutOfBoundsException(index);
    }
    return value[index];
}

code below returns a newly allocated character array whose length is the length of this string

public char[] toCharArray() {
    // Cannot use Arrays.copyOf because of class initialization order issues
    char result[] = new char[value.length];
    System.arraycopy(value, 0, result, 0, value.length);
    return result;
}

I tried out the accepted answer but I still had a problem with the content alignment. Adding a ":before" selector as shown below fixed the issue:

// LESS HELPER
.clearfix()
{
    &:after, &:before{
       content: " "; /* Older browser do not support empty content */
       visibility: hidden;
       display: block;
       height: 0;
       clear: both;
    }
}

LESS above will compile to CSS below:

clearfix:after,
clearfix:before {
  content: " ";
  /* Older browser do not support empty content */
  visibility: hidden;
  display: block;
  height: 0;
  clear: both;
}

Adding following to ansible config worked while using ansible ad-hoc commands:

[ssh_connection]
# ssh arguments to use
ssh_args = -o StrictHostKeyChecking=no

Ansible Version

ansible 2.1.6.0
config file = /etc/ansible/ansible.cfg

Try

var ts = TimeSpan.Parse(stringTime);

With a newer .NET you also have

TimeSpan ts;

if(!TimeSpan.TryParse(stringTime, out ts)){
     // throw exception or whatnot
}
// ts now has a valid format

This is the general idiom for parsing strings in .NET with the first version handling erroneous string by throwing FormatException and the latter letting the Boolean TryParse give you the information directly.

In new jQuery 1.5 you can use:

$.ajax({
    type: "GET",
    url: "http://localhost:99000/Services.svc/ReturnPersons",
    dataType: "jsonp",
    success: readData(data),
    error: function (xhr, ajaxOptions, thrownError) {
      alert(xhr.status);
      alert(thrownError);
    }
})

For somebody like me who lands onto this page from Google ages after this question had been posted, you can find VS2005 here: http://apdubey.blogspot.com/2009/04/microsoft-visual-studio-2005-express.html

EDIT: In case that blog dies, here are the links from the blog.

All the bellow files are more them 400MB.

Visual Web Developer 2005 Express Edition
449,848 KB
.IMG File | .ISO File

Visual Basic 2005 Express Edition
445,282 KB
.IMG File | .ISO File

Visual C# 2005 Express Edition
445,282 KB
.IMG File | .ISO File

Visual C++ 2005 Express Edition
474,686 KB
.IMG File | .ISO File

Visual J# 2005 Express Edition
448,702 KB
.IMG File | .ISO File

You have to download the font file and load it in your CSS.

F.e. I'm using the Yanone Kaffeesatz font in my Web Application.

I load and use it via

@font-face {
    font-family: "Yanone Kaffeesatz";
    src: url("../fonts/YanoneKaffeesatz-Regular.ttf");
}

in my stylesheet.

Slightly modifying answer by @Yogeesh Seralathan. His answer works perfectly, just run these commands at once.

adb shell input keyevent 26 && adb shell input touchscreen swipe 930 880 930 380 && adb shell input text XXXX && adb shell input keyevent 66

below method helps to convert string to secure string

private SecureString ConvertToSecureString(string password)
{
    if (password == null)
        throw new ArgumentNullException("password");

    var securePassword = new SecureString();

    foreach (char c in password)
        securePassword.AppendChar(c);

    securePassword.MakeReadOnly();
    return securePassword;
}

The CSS element() function may eventually help some people here, even though it's not a direct answer to the question. It allows you to use an element (and all children, including videos, cross-domain iframes, etc.) as a background image (and anywhere else that you'd normally use url(...) in your CSS code). Here's a blog post that shows what you can do with it.

It has been implemented in Firefox since 2011, and is being considered in Chromium/Chrome (don't forget to give the issue a star if you care about this functionality).

I would recommend to use ampersand to have an access to named blocks within a function. Following the recommendations given in this article you can write something like this (this is a real scrap from my working program):

  # Returns a valid hash for html form select element, combined of all entities
  # for the given +model+, where only id and name attributes are taken as
  # values and keys correspondingly. Provide block returning boolean if you
  # need to select only specific entities.
  #
  # * *Args*    :
  #   - +model+ -> ORM interface for specific entities'
  #   - +&cond+ -> block {|x| boolean}, filtering entities upon iterations
  # * *Returns* :
  #   - hash of {entity.id => entity.name}
  #
  def make_select_list( model, &cond )
    cond ||= proc { true } # cond defaults to proc { true }
    # Entities filtered by cond, followed by filtration by (id, name)
    model.all.map do |x|
      cond.( x ) ? { x.id => x.name } : {}
    end.reduce Hash.new do |memo, e| memo.merge( e ) end
  end

Afterwerds, you can call this function like this:

@contests = make_select_list Contest do |contest|
  logged_admin? or contest.organizer == @current_user
end

If you don't need to filter your selection, you simply omit the block:

@categories = make_select_list( Category ) # selects all categories

So much for the power of Ruby blocks.

I just fixed this problem (Different Case with same error),
The answer above I tried may not work because My case were different but produced the same error.
I think my vendor libraries were jumbled,
I get this error by:
1. Pull from remote git, master branch is codeigniter then I do composer update on master branch, I wanted to work on laravel branch then I checkout and do composer update so I get the error,

Fatal error: Class 'Illuminate\Foundation\Application' not found in C:\cms\bootstrap\app.php on line 14

Solution: I delete the project on local and do a clone again, after that I checkout to my laravel file work's branch and do composer update then it is fixed.

If logical test is against a single column then you could use something like

USE AdventureWorks2012;  
GO  
SELECT   ProductNumber, Category =  
      CASE ProductLine  
         WHEN 'R' THEN 'Road'  
         WHEN 'M' THEN 'Mountain'  
         WHEN 'T' THEN 'Touring'  
         WHEN 'S' THEN 'Other sale items'  
         ELSE 'Not for sale'  
      END,  
   Name  
FROM Production.Product  
ORDER BY ProductNumber;  
GO  

More information - https://docs.microsoft.com/en-us/sql/t-sql/language-elements/case-transact-sql?view=sql-server-2017

Your Nesting DIV structure was missing, you must add another ".row" div when creating nested divs in bootstrap :

Here is the Code:

<div class="container">
   <div class="row">
            <div class="col-md-12">
                <div class="row">
                    <div class="col-md-4"> <a href="">About</a>
    
                    </div>
                    <div class="col-md-4">
                        <img src="https://www.google.ca/images/srpr/logo11w.png" width="100px" />
                    </div>
                    <div class="col-md-4"> <a href="#myModal1" data-toggle="modal">SHARE</a>
    
                    </div>
                </div>
            </div>
        </div>
    </div>

Refer the Bootstrap example description for the same:

http://getbootstrap.com/css/

Nesting columns

To nest your content with the default grid, add a new .row and set of .col-sm-* columns within an existing .col-sm-* column. Nested rows should include a set of columns that add up to 12 or less (it is not required that you use all 12 available columns).

Here is the working Fiddle of your code: http://jsfiddle.net/52j6avkb/1/embedded/result/

Set the image to be the background of a div, then set the background size to be half the width of the image.

<div class="myimage"></div>

Then in your css, if your image is 300px x 200px:

.myimage {
    background: url('images/myimage.png') no-repeat;
    background-size:150px;
    width:150px;
    height:100px;
}

string filePath = @"C:\styles\MyStyles.css"; 
string siteURL = "http://example.org/"; 
string libraryName = "Style Library"; 

using (SPSite oSite = new SPSite(siteURL)) 
{ 
    using (SPWeb oWeb = oSite.OpenWeb()) 
    { 
        if (!System.IO.File.Exists(filePath)) 
            throw new FileNotFoundException("File not found.", filePath);                     

        SPFolder libFolder = oWeb.Folders[libraryName]; 

        // Prepare to upload 
        string fileName = System.IO.Path.GetFileName(filePath); 
        FileStream fileStream = File.OpenRead(filePath); 

        //Check the existing File out if the Library Requires CheckOut
        if (libFolder.RequiresCheckout)
        {
            try {
                SPFile fileOld = libFolder.Files[fileName];
                fileOld.CheckOut();
            } catch {}
        }

        // Upload document 
        SPFile spfile = libFolder.Files.Add(fileName, fileStream, true); 

        // Commit  
        myLibrary.Update(); 

        //Check the File in and Publish a Major Version
        if (libFolder.RequiresCheckout)
        {
                spFile.CheckIn("Upload Comment", SPCheckinType.MajorCheckIn);
                spFile.Publish("Publish Comment");
        }
    } 
} 

Tim S. was much closer to a "correct" answer then the currently accepted one. If you want to have a 100% width, variable height background image done with CSS, instead of using cover (which will allow the image to extend out from the sides) or contain (which does not allow the image to extend out at all), just set the CSS like so:

body {
    background-image: url(img.jpg);
    background-position: center top;
    background-size: 100% auto;
}

This will set your background image to 100% width and allow the height to overflow. Now you can use media queries to swap out that image instead of relying on JavaScript.

EDIT: I just realized (3 months later) that you probably don't want the image to overflow; you seem to want the container element to resize based on it's background-image (to preserve it's aspect ratio), which is not possible with CSS as far as I know.

Hopefully soon you'll be able to use the new srcset attribute on the img element. If you want to use img elements now, the currently accepted answer is probably best.

However, you can create a responsive background-image element with a constant aspect ratio using purely CSS. To do this, you set the height to 0 and set the padding-bottom to a percentage of the element's own width, like so:

.foo {
    height: 0;
    padding: 0; /* remove any pre-existing padding, just in case */
    padding-bottom: 75%; /* for a 4:3 aspect ratio */
    background-image: url(foo.png);
    background-position: center center;
    background-size: 100%;
    background-repeat: no-repeat;
}

In order to use different aspect ratios, divide the height of the original image by it's own width, and multiply by 100 to get the percentage value. This works because padding percentage is always calculated based on width, even if it's vertical padding.

The static calls to withdraw and deposit are your problem. account.withdraw(balance, 2500); This line can't work , since "balance" is an instance variable of Account. The code doesn't make much sense anyway, wouldn't withdraw/deposit be encapsulated inside the Account object itself? so the withdraw should be more like

public void withdraw(double withdrawAmount)
{
    balance -= withdrawAmount;
}

Of course depending on your problem you could do additional validation here to prevent negative balance etc.

yourNode.Toggle(); //use that function on your node, it toggles it

I am using Debian 8 live off a USB. I was locked out of the system after 10 min of inactivity. The password that was required to log back in to the system for the user was:

login : Debian Live User
password : live

I hope this helps

jQuery.val() and .text() will never return 'undefined' for an empty selection. It always returns an empty string (i.e. ""). .html() will return null if the element doesn't exist though.You need to do:

if(page_name != '')

For other variables that don't come from something like jQuery.val() you would do this though:

if(typeof page_name != 'undefined')

You just have to use the typeof operator.

Prior to standardization there was ioctl(...FIONBIO...) and fcntl(...O_NDELAY...), but these behaved inconsistently between systems, and even within the same system. For example, it was common for FIONBIO to work on sockets and O_NDELAY to work on ttys, with a lot of inconsistency for things like pipes, fifos, and devices. And if you didn't know what kind of file descriptor you had, you'd have to set both to be sure. But in addition, a non-blocking read with no data available was also indicated inconsistently; depending on the OS and the type of file descriptor the read may return 0, or -1 with errno EAGAIN, or -1 with errno EWOULDBLOCK. Even today, setting FIONBIO or O_NDELAY on Solaris causes a read with no data to return 0 on a tty or pipe, or -1 with errno EAGAIN on a socket. However 0 is ambiguous since it is also returned for EOF.

POSIX addressed this with the introduction of O_NONBLOCK, which has standardized behavior across different systems and file descriptor types. Because existing systems usually want to avoid any changes to behavior which might break backward compatibility, POSIX defined a new flag rather than mandating specific behavior for one of the others. Some systems like Linux treat all 3 the same, and also define EAGAIN and EWOULDBLOCK to the same value, but systems wishing to maintain some other legacy behavior for backward compatibility can do so when the older mechanisms are used.

New programs should use fcntl(...O_NONBLOCK...), as standardized by POSIX.

You can simplify the 5 through 21 part:

=IF(E9>21,"Text1",IF(E9>4,"Text2","Text3"))

function objToString (obj) {
    var str = '{';
    if(typeof obj=='object')
      {

        for (var p in obj) {
          if (obj.hasOwnProperty(p)) {
              str += p + ':' + objToString (obj[p]) + ',';
          }
      }
    }
      else
      {
         if(typeof obj=='string')
          {
            return '"'+obj+'"';
          }
          else
          {
            return obj+'';
          }
      }



    return str.substring(0,str.length-1)+"}";
}

It's an older question, but if anyone has a problem with setting this, their documentation is outdated. I made a copy of the php.ini file named php5.ini and now it works.

In some ways, your question seems very legitimate, but I still might label it an XY problem. I'm guessing the end result is that you want to display the sorted values in some way? As Bergi said in the comments, you can never quite rely on Javascript objects ( {i_am: "an_object"} ) to show their properties in any particular order.

For the displaying order, I might suggest you take each key of the object (ie, i_am) and sort them into an ordered array. Then, use that array when retrieving elements of your object to display. Pseudocode:

var keys = [...]
var sortedKeys = [...]
for (var i = 0; i < sortedKeys.length; i++) {
  var key = sortedKeys[i];
  addObjectToTable(json[key]);
}

To get a list of tables for the current database in DB2 -->

Connect to the database:

db2 connect to DATABASENAME user USER using PASSWORD

Run this query:

db2 LIST TABLES

This is the equivalent of SHOW TABLES in MySQL.

You may need to execute 'set schema myschema' to the correct schema before you run the list tables command. By default upon login your schema is the same as your username - which often won't contain any tables. You can use 'values current schema' to check what schema you're currently set to.

public class HelloWorld extends TimerTask{

    public void run() {

        System.out.println("Hello World");
    }
}


public class PrintHelloWorld {
    public static void main(String[] args) {
        Timer timer = new Timer();
        timer.schedule(new HelloWorld(), 0, 5000);

        while (true) {
            try {
                Thread.sleep(2000);
            } catch (InterruptedException e) {
                System.out.println("InterruptedException Exception" + e.getMessage());
            }
        }
    }
}

infinite loop is created ad scheduler task is configured.

Originally from this blog post. We can achieve if else by using below code

<xsl:choose>
    <xsl:when test="something to test">

    </xsl:when>
    <xsl:otherwise>

    </xsl:otherwise>
</xsl:choose>

So here is what I did

<h3>System</h3>
    <xsl:choose>
        <xsl:when test="autoIncludeSystem/autoincludesystem_info/@mdate"> <!-- if attribute exists-->
            <p>
                <dd><table border="1">
                    <tbody>
                        <tr>
                            <th>File Name</th>
                            <th>File Size</th>
                            <th>Date</th>
                            <th>Time</th>
                            <th>AM/PM</th>
                        </tr>
                        <xsl:for-each select="autoIncludeSystem/autoincludesystem_info">
                            <tr>
                                <td valign="top" ><xsl:value-of select="@filename"/></td>
                                <td valign="top" ><xsl:value-of select="@filesize"/></td>
                                <td valign="top" ><xsl:value-of select="@mdate"/></td>
                                <td valign="top" ><xsl:value-of select="@mtime"/></td>
                                <td valign="top" ><xsl:value-of select="@ampm"/></td>
                            </tr>
                        </xsl:for-each>
                    </tbody>
                </table>
                </dd>
            </p>
        </xsl:when>
        <xsl:otherwise> <!-- if attribute does not exists -->
            <dd><pre>
                <xsl:value-of select="autoIncludeSystem"/><br/>
            </pre></dd> <br/>
        </xsl:otherwise>
    </xsl:choose>

My Output

This is how I always do maths in Bash:

count=$(echo "$FIRSTV - $SECONDV"|bc)
echo $count

OCT. 2016 UPDATE

Since the -moz-element() property doesn't seem to be widely supported by other browsers except to FF, there's an even easier technique to apply blurring without affecting the contents of the container. The use of pseudoelements is ideal in this case in combination with svg blur filter.

Check the demo using pseudo-element

(Demo was tested in FF v49, Chrome v53, Opera 40 - IE doesn't seem to support blur either with css or svg filter)

The only way (so far) of having a blur effect in the background without js plugins, is the use of -moz-element() property in combination with the svg blur filter. With -moz-element() you can define an element as a background image of another element. Then you apply the svg blur filter. OPTIONAL: You can utilize some jQuery for scrolling if your background is in fixed position.

See my demo here

I understand it is a quite complicated solution and limited to FF (element() applies only to Mozilla at the moment with -moz-element() property) but at least there's been some effort in the past to implement in webkit browsers and hopefully it will be implemented in the future.

The visible width of an element is width + padding + border + outline, so it seems that you are forgetting about the border on the input element. That is, to say, that the default border width for an input element on most (some?) browsers is actually calculated as 2px, not one. Hence your input is appearing as 2px wider. Try explicitly setting the border-width on the input, or making your div wider.

If you're designing for an iOS device or just webkit, you can do it with no JS whatsoever:

CSS:

@-webkit-keyframes spin {  
from {  
    -webkit-transform: rotate(0deg);  
}  
to {  
    -webkit-transform: rotate(360deg);  
    } 
}

.wheel {
    width:40px;
    height:40px;
    background:url(wheel.png);
    -webkit-animation-name: spin; 
    -webkit-animation-iteration-count: infinite; 
    -webkit-animation-timing-function: linear;
    -webkit-animation-duration: 3s; 
}

This would trigger the animation on load. If you wanted to trigger it on hover, it might look like this:

.wheel {
    width:40px;
    height:40px;
    background:url(wheel.png);
}

.wheel:hover {
    -webkit-animation-name: spin; 
    -webkit-animation-iteration-count: infinite; 
    -webkit-animation-timing-function: ease-in-out;
    -webkit-animation-duration: 3s; 
}

ng serve --poll=2000

Working fine in linux and windows

What happens when the repository owner has not prepared a zip file, and you just want a download to use yourself? There is an answer and you don't need to go though that horrid process to download software, install and register keys and whatnot on GitHub, etc.!

To simply download a repository as a zip file: add the extra path '/zipball/master/' to the end of the repository URL and voila, it gives you a zip file of the whole lot.

For example,

http://github.com/zoul/Finch/

becomes:

http://github.com/zoul/Finch/zipball/master/

It then gives you a zip file to download.

intellij idea 2019

1. Download Microsoft JDBC Driver for SQL Server

(https://docs.microsoft.com/en-us/sql/connect/jdbc/download-microsoft-jdbc-driver-for-sql-server?view=sql-server-2017)

2. Unpack ("C:\opt\sqljdbc_7.2\enu\mssql-jdbc-7.2.2.jre11.jar")
3. Add; (File->Project Structure->Global Libraries)
4. Use; (Adding Jar files to IntellijIdea classpath (look video)) import com.microsoft.sqlserver.jdbc.SQLServerDriver; https://youtu.be/-2hjxoRKsyk

or ub Gradle set "compile" compile group: 'com.microsoft.sqlserver', name: 'mssql-jdbc', version: '7.2.2.jre11'

On my case clearing buildpacks worked heroku buildpacks:clear

OOP Solution

Nearly every answer proposes a static function as a solution, but thinking Object-Oriented (for reusability-purposes and clarity) I came up with a Solution via Delegation through the CharSequence-Interface (which also opens up usability on mutable CharSequence-Classes).

The following Class can be used either with or without Separator-String/CharSequence and each call to "toString()" builds the final repeated String. The Input/Separator are not only limited to String-Class, but can be every Class which implements CharSequence (e.g. StringBuilder, StringBuffer, etc)!

Source-Code:

/**
 * Helper-Class for Repeating Strings and other CharSequence-Implementations
 * @author Maciej Schuttkowski
 */
public class RepeatingCharSequence implements CharSequence {
    final int count;
    CharSequence internalCharSeq = "";
    CharSequence separator = "";
    /**
     * CONSTRUCTOR - RepeatingCharSequence
     * @param input CharSequence to repeat
     * @param count Repeat-Count
     */
    public RepeatingCharSequence(CharSequence input, int count) {
        if(count < 0)
            throw new IllegalArgumentException("Can not repeat String \""+input+"\" less than 0 times! count="+count);
        if(count > 0)
            internalCharSeq = input;
        this.count = count;
    }
    /**
     * CONSTRUCTOR - Strings.RepeatingCharSequence
     * @param input CharSequence to repeat
     * @param count Repeat-Count
     * @param separator Separator-Sequence to use
     */
    public RepeatingCharSequence(CharSequence input, int count, CharSequence separator) {
        this(input, count);
        this.separator = separator;
    }

    @Override
    public CharSequence subSequence(int start, int end) {
        checkBounds(start);
        checkBounds(end);
        int subLen = end - start;
        if (subLen < 0) {
            throw new IndexOutOfBoundsException("Illegal subSequence-Length: "+subLen);
        }
        return (start == 0 && end == length()) ? this
                    : toString().substring(start, subLen);
    }
    @Override
    public int length() {
        //We return the total length of our CharSequences with the separator 1 time less than amount of repeats:
        return count < 1 ? 0
                : ( (internalCharSeq.length()*count) + (separator.length()*(count-1)));
    }
    @Override
    public char charAt(int index) {
        final int internalIndex = internalIndex(index);
        //Delegate to Separator-CharSequence or Input-CharSequence depending on internal index:
        if(internalIndex > internalCharSeq.length()-1) {
            return separator.charAt(internalIndex-internalCharSeq.length());
        }
        return internalCharSeq.charAt(internalIndex);
    }
    @Override
    public String toString() {
        return count < 1 ? ""
                : new StringBuilder(this).toString();
    }

    private void checkBounds(int index) {
        if(index < 0 || index >= length())
            throw new IndexOutOfBoundsException("Index out of Bounds: "+index);
    }
    private int internalIndex(int index) {
        // We need to add 1 Separator-Length to total length before dividing,
        // as we subtracted one Separator-Length in "length()"
        return index % ((length()+separator.length())/count);
    }
}

Usage-Example:

public static void main(String[] args) {
    //String input = "12345";
    //StringBuffer input = new StringBuffer("12345");
    StringBuilder input = new StringBuilder("123");
    //String separator = "<=>";
    StringBuilder separator = new StringBuilder("<=");//.append('>');
    int repeatCount = 2;

    CharSequence repSeq = new RepeatingCharSequence(input, repeatCount, separator);
    String repStr = repSeq.toString();

    System.out.println("Repeat="+repeatCount+"\tSeparator="+separator+"\tInput="+input+"\tLength="+input.length());
    System.out.println("CharSeq:\tLength="+repSeq.length()+"\tVal="+repSeq);
    System.out.println("String :\tLength="+repStr.length()+"\tVal="+repStr);

    //Here comes the Magic with a StringBuilder as Input, as you can append to the String-Builder
    //and at the same Time your Repeating-Sequence's toString()-Method returns the updated String :)
    input.append("ff");
    System.out.println(repSeq);
    //Same can be done with the Separator:
    separator.append("===").append('>');
    System.out.println(repSeq);
}

Example-Output:

Repeat=2    Separator=<=    Input=123   Length=3
CharSeq:    Length=8    Val=123<=123
String :    Length=8    Val=123<=123
123ff<=123ff
123ff<====>123ff

The most common application here is closing on clicking the document but not when it came from within that element, for this you want to stop the bubbling, like this:

$(".menuWrapper").click(function(e) {
  e.stopPropagation(); //stops click event from reaching document
});
$(document).click(function() {
  $(".menuWrapper").hide(); //click came from somewhere else
});

All were doing here is preventing the click from bubbling up (via event.stopPrpagation()) when it came from within a .menuWrapper element. If this didn't happen, the click came from somewhere else, and will by default make it's way up to document, if it gets there, we hide those .menuWrapper elements.

You probably want to use "eq" instead of "==". If you worry about some edge cases you may also want to check for undefined:

if (not defined $str) {

# this variable is undefined

}

To show vertical scroll bar in your div you need to add

height: 100px;   
overflow-y : scroll;

or

height: 100px; 
overflow-y : auto;

Starting from Python 3.3 this becomes super easy with the datetime.timestamp() method. This of course will only be useful if you need the number of seconds from 1970-01-01 UTC.

from datetime import datetime
dt = datetime.today()  # Get timezone naive now
seconds = dt.timestamp()

The return value will be a float representing even fractions of a second. If the datetime is timezone naive (as in the example above), it will be assumed that the datetime object represents the local time, i.e. It will be the number of seconds from current time at your location to 1970-01-01 UTC.

What you have settled for is the best you can do:

public bool Foo<T>() where T : IBase;

// Send [CTRL-C] to interrupt a batch file running in a Command Prompt window, even if the Command Prompt window is not visible,
// without bringing the Command Prompt window into focus.
// [CTRL-C] will have an effect on the batch file, but not on the Command Prompt  window itself -- in other words,
// [CTRL-C] will not have the same visible effect on a Command Prompt window that isn't running a batch file at the moment
// as bringing a Command Prompt window that isn't running a batch file into focus and pressing [CTRL-C] on the keyboard.
ulong ulProcessId = 0UL;
// hwC = Find Command Prompt window HWND
GetWindowThreadProcessId (hwC, (LPDWORD) &ulProcessId);
AttachConsole ((DWORD) ulProcessId);
SetConsoleCtrlHandler (NULL, TRUE);
GenerateConsoleCtrlEvent (CTRL_C_EVENT, 0UL);
SetConsoleCtrlHandler (NULL, FALSE);
FreeConsole ();

I tried all the above and nothing worked for me. This solved all my problems:

pip install -U numpy

pip install -U scipy

Note that the -U option to pip install requests that the package be upgraded. Without it, if the package is already installed pip will inform you of this and exit without doing anything.

If you are a Windows user, put the content below in a setenv.bat file that you must create in Tomcat bin directory.

set JAVA_HOME=C:\Program Files\Java\jdk1.6.x

If you are a Linux user, put the content below in a setenv.sh file that you must create in Tomcat bin directory.

JAVA_HOME=/usr/java/jdk1.6.x

And if you are using google guava, the one line solution would be

List<String> b = Lists.newArrayList(a);

This creates a mutable array list instance.

Here is an example I came up with that wraps another class with a debouncer. This lends itself nicely to being made into a decorator/higher order function:

export class DebouncedThingy extends React.Component {
    static ToDebounce = ['someProp', 'someProp2'];
    constructor(props) {
        super(props);
        this.state = {};
    }
    // On prop maybe changed
    componentWillReceiveProps = (nextProps) => {
        this.debouncedSetState();
    };
    // Before initial render
    componentWillMount = () => {
        // Set state then debounce it from here on out (consider using _.throttle)
        this.debouncedSetState();
        this.debouncedSetState = _.debounce(this.debouncedSetState, 300);
    };
    debouncedSetState = () => {
        this.setState(_.pick(this.props, DebouncedThingy.ToDebounce));
    };
    render() {
        const restOfProps = _.omit(this.props, DebouncedThingy.ToDebounce);
        return <Thingy {...restOfProps} {...this.state} />
    }
}

The error message tells the exact reason: "abstract methods cannot have a body".

They can only be defined in abstract classes and interfaces (interface methods are implicitly abstract!) and the idea is, that the subclass implements the method.

Example:

 public abstract class AbstractGreeter {
   public abstract String getHelloMessage();

   public void sayHello() {
     System.out.println(getHelloMessage());
   }
 }

 public class FrenchGreeter extends AbstractGreeter{

   // we must implement the abstract method
   @Override
   public String getHelloMessage() {
     return "bonjour";
   }
 }

if you use class component then only 3 steps- first you need to declare state for your input filed for example this.state = {name:''}. Secondly, you need to write a function for setting the state when it changes in bellow example it is setName() and finally you have to write the input jsx for example < input value={this.name} onChange = {this.setName}/>

import React, { Component } from 'react'

export class InputComponents extends Component {
    constructor(props) {
        super(props)

        this.state = {
             name:'',
             agree:false
        }
        this.setName = this.setName.bind(this);
        this.setAgree=this.setAgree.bind(this);
    }

    setName(e){
        e.preventDefault();
        console.log(e.target.value);
        this.setState({
            name:e.target.value
        })
    }
    setAgree(){
        this.setState({
            agree: !this.state.agree
        }, function (){
            console.log(this.state.agree);
        })
    }
    render() {
        return (
            <div>
                <input type="checkbox" checked={this.state.agree} onChange={this.setAgree}></input>
                < input value={this.state.name} onChange = {this.setName}/>
            </div>
        )
    }
}

export default InputComponents

To match anything other than letter or number you could try this:

[^a-zA-Z0-9]

And to replace:

var str = 'dfj,dsf7lfsd .sdklfj';
str = str.replace(/[^A-Za-z0-9]/g, ' ');

Edit: Hash versus Array

As cincodenada correctly pointed out in the comment, ysth gave a better answer: I should have answered your question with another question: "Do you really want to use a Perl array? A hash may be more appropriate."

An array allocates memory for all possible indices up to the largest used so-far. In your example, you allocate 24 cells (but use only 3). By contrast, a hash only allocates space for those fields that are actually used.

Array solution: scalar grep

Here are two possible solutions (see below for explanation):

print scalar(grep {defined $_} @a), "\n";  # prints 3
print scalar(grep $_, @a), "\n";            # prints 3

Explanation: After adding $a[23], your array really contains 24 elements --- but most of them are undefined (which also evaluates as false). You can count the number of defined elements (as done in the first solution) or the number of true elements (second solution).

What is the difference? If you set $a[10]=0, then the first solution will count it, but the second solution won't (because 0 is false but defined). If you set $a[3]=undef, none of the solutions will count it.

Hash solution (by yst)

As suggested by another solution, you can work with a hash and avoid all the problems:

$a{0}  = 1;
$a{5}  = 2;
$a{23} = 3;
print scalar(keys %a), "\n";  # prints 3

This solution counts zeros and undef values.

First off, you have to specify you wish to use Document Literal style:

$client = new SoapClient(NULL, array(
    'location' => 'https://example.com/path/to/service',
    'uri' => 'http://example.com/wsdl',
    'trace' => 1,
    'use' => SOAP_LITERAL)
);

Then, you need to transform your data into a SoapVar; I've written a simple transform function:

function soapify(array $data)
{
        foreach ($data as &$value) {
                if (is_array($value)) {
                        $value = soapify($value);
                }
        }

        return new SoapVar($data, SOAP_ENC_OBJECT);
}

Then, you apply this transform function onto your data:

$data = soapify(array(
    'Acquirer' => array(
        'Id' => 'MyId',
        'UserId' => 'MyUserId',
        'Password' => 'MyPassword',
    ),
));

Finally, you call the service passing the Data parameter:

$method = 'Echo';

$result = $client->$method(new SoapParam($data, 'Data'));

You can only use one color but as many images as you want, here is the format:

background: [ <bg-layer> , ]* <final-bg-layer>

<bg-layer> = <bg-image> || <bg-position> [ / <bg-size> ]? || <repeat-style> || <attachment> || <box>{1,2}

<final-bg-layer> = <bg-image> || <bg-position> [ / <bg-size> ]? || <repeat-style> || <attachment> || <box>{1,2} || <background-color>

or background: url(image1.png) center bottom no-repeat, url(image2.png) left top no-repeat;

If you need more colors, make an image of a solid color and use it. I know it’s not what you want to hear, but I hope it helps.

The format is from http://www.css3.info/preview/multiple-backgrounds/

If you don't mind saving your local changes, yet still want to update your repository to match origin/HEAD, you can simply stash your local changes and then pull:

git stash
git pull

Here is a step wise information :

Step-1

Start up Terminal and go to your home folder.

cd ~/

Step-2

Open and edit .bash_profile file

$ open -e .bash_profile

If you don’t have .bash_profile file in your computer path, then create one. Enter below command to create a new file. Once created follow Step-2.

touch .bash_profile

Step-3

Save the below line)

export PATH=${PATH}:/Applications/adt-bundle-mac-x86_64-20140321/sdk/tools
export PATH=${PATH}:/Applications/adt-bundle-mac-x86_64-20140321/sdk/platform-tools

Step-4

Refresh the file using below command

$ source .bash_profile

$ echo $PATH

You should see your android path set in the output now.

Interestingly, if I use 'background-image', it does not work:

background-image: url('picture.png');

But just 'background', it does:

background: url('picture.png');

var o = ...
var proto =  Object.getPrototypeOf(o);
proto === SomeThing;

Keep a handle on the prototype you expect the object to have, then compare against it.

for example

var o = "someString";
var proto =  Object.getPrototypeOf(o);
proto === String.prototype; // true

As pointed out in Manto's answer, .utcOffset() is the preferred method as of Moment 2.9.0. This function uses the real offset from UTC, not the reverse offset (e.g., -240 for New York during DST). Offset strings like "+0400" work the same as before:

// always "2013-05-23 00:55"
moment(1369266934311).utcOffset(60).format('YYYY-MM-DD HH:mm')
moment(1369266934311).utcOffset('+0100').format('YYYY-MM-DD HH:mm')

The older .zone() as a setter was deprecated in Moment.js 2.9.0. It accepted a string containing a timezone identifier (e.g., "-0400" or "-04:00" for -4 hours) or a number representing minutes behind UTC (e.g., 240 for New York during DST).

// always "2013-05-23 00:55"
moment(1369266934311).zone(-60).format('YYYY-MM-DD HH:mm')
moment(1369266934311).zone('+0100').format('YYYY-MM-DD HH:mm')

To work with named timezones instead of numeric offsets, include Moment Timezone and use .tz() instead:

// determines the correct offset for America/Phoenix at the given moment
// always "2013-05-22 16:55"
moment(1369266934311).tz('America/Phoenix').format('YYYY-MM-DD HH:mm')

I tested now 4h but it dont work 2021 with the group-chat-id. All the time the error {"ok":true,"result":[]}

But now i found a Solution:

1:) install the "Plus Messenger" (https://play.google.com/store/apps/details?id=org.telegram.plus)

2:) go in the Group => Tap now on the "Group-Name" in the Head => Double Tap now on the Headline from the Group. A Info is comming: ID123456789 is copy in the clipboard

3:) go in the Group an paste the clipboard text. It´s you Groud-ID

4:) looks like 1068773197, which is -1001068773197 for bots (with -100 prefix)!!!

btw, you see the user-id too, on your profil.

5:) Now go to the Webbrowser an send this line (Test Message):

https://api.telegram.org/botAPITOKENNUMBER:APITOKENKEYHERE/sendmessage?chat_id=-100GROUPNUMBER&text=test

Edit the API Token and the Group-ID!

Because the original question was never answered, and I had to run into this same problem, the solution for the MD5 problem is that S3 doesn't want the Hex encoded MD5 string we normally think about.

Instead, I had to do this.

// content is a passed in InputStream
byte[] resultByte = DigestUtils.md5(content);
String streamMD5 = new String(Base64.encodeBase64(resultByte));
metaData.setContentMD5(streamMD5);

Essentially what they want for the MD5 value is the Base64 encoded raw MD5 byte-array, not the Hex string. When I switched to this it started working great for me.

For PHP processing, look into cURL. It will allow you to call pages on your back end and retrieve data from it. Basically you would do something like this:

$ch = curl_init();
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt ($ch, CURLOPT_URL,$fetch_url);
curl_setopt ($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt ($ch,CURLOPT_USERAGENT, $user_agent;
curl_setopt ($ch,CURLOPT_CONNECTTIMEOUT,60);
$response = curl_exec ( $ch );
curl_close($ch);

You can also look into the PHP HTTP Extension.

I know this already has a bunch of answers but I found that for buttons it is just easiest to create your own .xml selectors and set that to the background of said button. That way you can also change it state when pressed or enabled and so on. Here is a quick snippet of one that I use. If you want to add a transparency to any of the colors, add a leading hex value (#XXcccccc). (XX == "alpha of color")

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="true" >
        <shape>
            <solid
                android:color="#70c656" />
            <stroke
                android:width="1dp"
                android:color="#53933f" />
            <corners
                android:radius="4dp" />
            <padding
                android:left="10dp"
                android:top="10dp"
                android:right="10dp"
                android:bottom="10dp" />
        </shape>
    </item>
    <item>
        <shape>
            <gradient
                android:startColor="#70c656"
                android:endColor="#53933f"
                android:angle="270" />
            <stroke
                android:width="1dp"
                android:color="#53933f" />
            <corners
                android:radius="4dp" />
            <padding
                android:left="10dp"
                android:top="10dp"
                android:right="10dp"
                android:bottom="10dp" />
        </shape>
    </item>
</selector>

Thread wait on the monitoring object (object used by synchronization block), There can be n number of monitoring object in whole journey of a single thread. If Thread wait outside the synchronization block then there is no monitoring object and also other thread notify to access for the monitoring object, so how would the thread outside the synchronization block would know that it has been notified. This is also one of the reason that wait(), notify() and notifyAll() are in object class rather than thread class.

Basically the monitoring object is common resource here for all the threads, and monitoring objects can only be available in synchronization block.

class A {
   int a = 0;
  //something......
  public void add() {
   synchronization(this) {
      //this is your monitoring object and thread has to wait to gain lock on **this**
       }
  }

Try this, it will insert the list item at index 0;

DropDownList1.Items.Insert(0, new ListItem("Add New", ""));

One could also use the JQuery filter for objects

var newobj = $(obj).filter(function(key) {
    return $(this)[key]!== undefined;
  })[0];

Demo here

I think it's better to use the symmetric difference operation of sets to do that Here is the link to the doc.

>>> dict1 = {1:'donkey', 2:'chicken', 3:'dog'}
>>> dict2 = {1:'donkey', 2:'chimpansee', 4:'chicken'}
>>> set1 = set(dict1.items())
>>> set2 = set(dict2.items())
>>> set1 ^ set2
{(2, 'chimpansee'), (4, 'chicken'), (2, 'chicken'), (3, 'dog')}

It is symmetric because:

>>> set2 ^ set1
{(2, 'chimpansee'), (4, 'chicken'), (2, 'chicken'), (3, 'dog')}

This is not the case when using the difference operator.

>>> set1 - set2
{(2, 'chicken'), (3, 'dog')}
>>> set2 - set1
{(2, 'chimpansee'), (4, 'chicken')}

However it may not be a good idea to convert the resulting set to a dictionary because you may lose information:

>>> dict(set1 ^ set2)
{2: 'chicken', 3: 'dog', 4: 'chicken'}

This is one of the reasons why C++ introduced the new cast style, which includes static_cast and reinterpret_cast

There's two things you can mean by saying conversion from signed to unsigned, you might mean that you wish the unsigned variable to contain the value of the signed variable modulo the maximum value of your unsigned type + 1. That is if your signed char has a value of -128 then CHAR_MAX+1 is added for a value of 128 and if it has a value of -1, then CHAR_MAX+1 is added for a value of 255, this is what is done by static_cast. On the other hand you might mean to interpret the bit value of the memory referenced by some variable to be interpreted as an unsigned byte, regardless of the signed integer representation used on the system, i.e. if it has bit value 0b10000000 it should evaluate to value 128, and 255 for bit value 0b11111111, this is accomplished with reinterpret_cast.

Now, for the two's complement representation this happens to be exactly the same thing, since -128 is represented as 0b10000000 and -1 is represented as 0b11111111 and likewise for all in between. However other computers (usually older architectures) may use different signed representation such as sign-and-magnitude or ones' complement. In ones' complement the 0b10000000 bitvalue would not be -128, but -127, so a static cast to unsigned char would make this 129, while a reinterpret_cast would make this 128. Additionally in ones' complement the 0b11111111 bitvalue would not be -1, but -0, (yes this value exists in ones' complement,) and would be converted to a value of 0 with a static_cast, but a value of 255 with a reinterpret_cast. Note that in the case of ones' complement the unsigned value of 128 can actually not be represented in a signed char, since it ranges from -127 to 127, due to the -0 value.

I have to say that the vast majority of computers will be using two's complement making the whole issue moot for just about anywhere your code will ever run. You will likely only ever see systems with anything other than two's complement in very old architectures, think '60s timeframe.

The syntax boils down to the following:

signed char x = -100;
unsigned char y;

y = (unsigned char)x;                    // C static
y = *(unsigned char*)(&x);               // C reinterpret
y = static_cast<unsigned char>(x);       // C++ static
y = reinterpret_cast<unsigned char&>(x); // C++ reinterpret

To do this in a nice C++ way with arrays:

jbyte memory_buffer[nr_pixels];
unsigned char* pixels = reinterpret_cast<unsigned char*>(memory_buffer);

or the C way:

unsigned char* pixels = (unsigned char*)memory_buffer;

All you need is two flags, one is "-r" for recursion and "--no-parent" (or -np) in order not to go in the '.' and ".." . Like this:

wget -r --no-parent http://example.com/configs/.vim/

That's it. It will download into the following local tree: ./example.com/configs/.vim . However if you do not want the first two directories, then use the additional flag --cut-dirs=2 as suggested in earlier replies:

wget -r --no-parent --cut-dirs=2 http://example.com/configs/.vim/

And it will download your file tree only into ./.vim/

In fact, I got the first line from this answer precisely from the wget manual, they have a very clean example towards the end of section 4.3.

AsNoTracking() allows the "unique key per record" requirement in EF to be bypassed (not mentioned explicitly by other answers).

This is extremely helpful when reading a View that does not support a unique key because perhaps some fields are nullable or the nature of the view is not logically indexable.

For these cases the "key" can be set to any non-nullable column but then AsNoTracking() must be used with every query else records (duplicate by key) will be skipped.

do not place *jsp or *html in root folder of webapp and images you want to display in same root folder browser cannot acess the image in WEB-INF folder

sudo chown -R yourname:www-data cake

then

sudo chmod -R g+s cake

First command changes owner and group.

Second command adds s attribute which will keep new files and directories within cake having the same group permissions.

Path.GetDirectoryName() returns the directory name, so for what you want (with the trailing reverse solidus character) you could call Path.GetDirectoryName(filePath) + Path.DirectorySeparatorChar.

Just testing for end of file with feof would do, I think.

Lambda expressions are typically used to encapsulate algorithms so that they can be passed to another function. However, it is possible to execute a lambda immediately upon definition:

[&](){ ...your code... }(); // immediately executed lambda expression

is functionally equivalent to

{ ...your code... } // simple code block

This makes lambda expressions a powerful tool for refactoring complex functions. You start by wrapping a code section in a lambda function as shown above. The process of explicit parameterization can then be performed gradually with intermediate testing after each step. Once you have the code-block fully parameterized (as demonstrated by the removal of the &), you can move the code to an external location and make it a normal function.

Similarly, you can use lambda expressions to initialize variables based on the result of an algorithm...

int a = []( int b ){ int r=1; while (b>0) r*=b--; return r; }(5); // 5!

As a way of partitioning your program logic, you might even find it useful to pass a lambda expression as an argument to another lambda expression...

[&]( std::function<void()> algorithm ) // wrapper section
   {
   ...your wrapper code...
   algorithm();
   ...your wrapper code...
   }
([&]() // algorithm section
   {
   ...your algorithm code...
   });

Lambda expressions also let you create named nested functions, which can be a convenient way of avoiding duplicate logic. Using named lambdas also tends to be a little easier on the eyes (compared to anonymous inline lambdas) when passing a non-trivial function as a parameter to another function. Note: don't forget the semicolon after the closing curly brace.

auto algorithm = [&]( double x, double m, double b ) -> double
   {
   return m*x+b;
   };

int a=algorithm(1,2,3), b=algorithm(4,5,6);

If subsequent profiling reveals significant initialization overhead for the function object, you might choose to rewrite this as a normal function.

I had the same error as described by title, but for me it was simply installing Microsoft access 12.0 oledb redistributable to use with LinqToExcel.

$curl = curl_init();

  curl_setopt_array($curl, array(
  CURLOPT_URL => "", // Server Path
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 3000, // increase this
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => "{\"email\":\"[email protected]\",\"password\":\"markus William\",\"username\":\"Daryl Brown\",\"mobile\":\"013132131112\","msg":"No more SSRIs." }",
  CURLOPT_HTTPHEADER => array(
    "Content-Type: application/json",
    "Postman-Token: 4867c7a3-2b3d-4e9a-9791-ed6dedb046b1",
    "cache-control: no-cache"
  ),
));

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

initialize array index "CURLOPT_TIMEOUT" with a value in seconds according to time required for response .

Installing the following packages:

• Connector/NET 8.0.16: https://dev.mysql.com/downloads/connector/net/
• MySQL for Visual Studio 1.2.8: https://dev.mysql.com/downloads/windows/visualstudio/

adds MySQL Database to the data sources list (Visual Studio 2017)

There are two issues:

1. Getting the current coordinates (longitude, latitude, perhaps altitude) based on some external signals received by your device, and
2. Deriving a human-readable position (address) from the coordinates.

To get the coordinates you don't need the Internet. GPS is satellite-based. But to derive street/city information from the coordinates, you'd need either to implement the map and the corresponding algorithms yourself on the device (a lot of work!) or to rely on proven services, e.g. by Google, in which case you'd need an Internet connection.

As of recently, Google allows for caching the maps, which would at least allow you to show your current position on the map even without a data connection, provided, you had cached the map in advance, when you could access the Internet.

You should be able to adjust the width using the .modal-dialog class selector (in conjunction with media queries or whatever strategy you're using for responsive design):

.modal-dialog {
    width: 400px;
}

To find in the parent of the iFrame use:

$('#parentPrice', window.parent.document).html();

The second parameter for the $() wrapper is the context in which to search. This defaults to document.

Getting the correct URL for your camera seems to be the actual challenge! I'm putting my working URL here, it might help someone. The camera is EZVIZ C1C with exact model cs-c1c-d0-1d2wf. The working URL is

rtsp://admin:[email protected]/h264_stream

where SZGBZT is the verification code found at the bottom of the camera. admin is always admin regardless of any settings or users you have.

The final code will be

video_capture = cv2.VideoCapture('rtsp://admin:[email protected]/h264_stream')

create or replace procedure point_triangle
AS
BEGIN
FOR thisteam in (select FIRSTNAME,LASTNAME,SUM(PTS)  from PLAYERREGULARSEASON  where TEAM    = 'IND' group by FIRSTNAME, LASTNAME order by SUM(PTS) DESC)

LOOP
dbms_output.put_line(thisteam.FIRSTNAME|| ' ' || thisteam.LASTNAME || ':' || thisteam.PTS);
END LOOP;

END;
/

This worked for me on Ubuntu:

Stop MySQL server:

/etc/init.d/mysql stop

Start MySQL from the commandline:

/usr/sbin/mysqld

In another terminal enter mysql and issue:

grant all privileges on *.* to 'root'@'%' with grant option;

You may also want to add

grant all privileges on *.* to 'root'@'localhost' with grant option;

and optionally use a password as well.

flush privileges;

and then exit your MySQL prompt and then kill the mysqld server running in the foreground. Restart with

/etc/init.d/mysql start  

As far as I was searching for answer too, and wanted to acomplish it with CSS. I found solution by CSS NINJA It is a nice impelmentation of <input type="checkbox"> and some css Live demo! Although it is not working in IE 8 you could implement selectivizr! and fix CSS where uses opacity to filter to make it work in IE.

EDIT 2014:

for new toggle buttons I do use solution found on Lea Verou blog visually similar to iOS checkbox

By clustering, you can group data with your desired properties such as the number, the shape, and other properties of extracted clusters. While, in classification, the number and the shape of groups are fixed. Most of the clustering algorithms give the number of clusters as a parameter. However, there are some approaches to find out the appropriate number of clusters.

I know its an old question but please note for the following differences between Math round and String format round:

decimal d1 = (decimal)1.125;
Math.Round(d1, 2).Dump();   // returns 1.12
d1.ToString("#.##").Dump(); // returns "1.13"

decimal d2 = (decimal)1.1251;
Math.Round(d2, 2).Dump();   // returns 1.13
d2.ToString("#.##").Dump(); // returns "1.13"

I first couldn't manage to kill mysql daemon with the commands posted here. So I remembered my linux times and did the following:

I monitored the running processes by running top in one terminal window. Then I killed mysqld via sudo killall mysqld (screw the PID ;-) ) in another and restarted via sudo /Applications/XAMPP/xamppfiles/bin/mysql.server start.

What I did was: created a new provisioning profile and used it. When setup the provisioning profile in the build setting tab, there were the wrong provisioning profile numbers (like "983ff..." as the error message mentioned, that's it!). Corrected to the new provisioning profile, then Xcode 7.2 refreshed itself, and build successfully.

bash:

LD_LIBRARY_PATH=my_path
sqsub -np $1 /path/to/executable

Similar, in Python:

import os
import subprocess
import sys

os.environ['LD_LIBRARY_PATH'] = "my_path" # visible in this process + all children
subprocess.check_call(['sqsub', '-np', sys.argv[1], '/path/to/executable'],
                      env=dict(os.environ, SQSUB_VAR="visible in this subprocess"))

VMWare Player can be seen as a free, closed-source competitor to Virtualbox.

Initially VMWare Player (up to version 2.5) was intended to operate on fixed virtual operating systems (e.g. play back pre-created virtual disks).

Many advanced features such as vsphere are probably not required by most users, and VMWare Player will provide the same core technologies and 3D acceleration as the ESX Workstation solution.

From my experience VMWare Player 5 is faster than Virtualbox 4.2 RC3 and has better SMP performance. Both are great however, each with its own unique advantages. Both are somewhat lacking in 2D rendering performance.

See the official FAQ, and a feature comparison table.

or you can use:

a {
    display: inline-block;
  }

In iOS 9.1 and lower, go to Settings - General - Profiles - tap on your Profile - tap on Trust button.

In iOS 9.2+ & iOS 11+ go to: Settings - General - Profiles & Device Management - tap on your Profile - tap on Trust button.

In iOS 10+, go to: Settings - General - Device Management - tap on your Profile - tap on Trust button.

Try using Web API HttpClient

    static async Task RunAsync()
    {
        using (var client = new HttpClient())
        {
            client.BaseAddress = new Uri("http://domain.com/");
            client.DefaultRequestHeaders.Accept.Clear();
            client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));


            // HTTP POST
            var obj = new MyObject() { Str = "MyString"};
            response = await client.PostAsJsonAsync("POST URL GOES HERE?", obj );
            if (response.IsSuccessStatusCode)
            {
                response.//.. Contains the returned content.
            }
        }
    }

You can find more details here Web API Clients

Be careful of difference between 'c' and "c"

'c' is a char suitable for formatting with %c

"c" is a char* pointing to a memory block with a length of 2 (with the null terminator).

I would just to like to add that the directory is not necessarily C:\Users\[username]\.ssh. It is the directory in which you created your public key in.

For instance my home directory in Windows was changed to C:\[username]. Your home directory in a .ssh sub-folder is the best and most likely place you may have created your keys. You can check your home directory in Windows with the command:

    echo %HOMEPATH%

Assign spreadsheet filename to file

Load spreadsheet

Print the sheet names

Load a sheet into a DataFrame by name: df1

file = 'example.xlsx'
xl = pd.ExcelFile(file)
print(xl.sheet_names)
df1 = xl.parse('Sheet1')

I've found the solution in this thread

@(ViewContext.RouteData.Values["parameterName"])

Simplest of all solutions:

filtered_df = df[df['name'].notnull()]

Thus, it filters out only rows that doesn't have NaN values in 'name' column.

For multiple columns:

filtered_df = df[df[['name', 'country', 'region']].notnull().all(1)]

I had the same problem and was able to use the following:

// Load the directory as a resource
URL dir_url = ClassLoader.getSystemResource(dir_path);
// Turn the resource into a File object
File dir = new File(dir_url.toURI());
// List the directory
String files = dir.list()

Try to install pip through Python:

Please go to: https://pip.pypa.io/en/stable/installing/

and download get-pip.py, and then run:

(sudo) python get-pip.py

For new comers,

matplotlib.pyplot.switch_backend(newbackend)

The way that Java Swing UIs work is that for each JPanel there is always a LayoutManager that decides on where to exactly place your components. Each layout managers works differently, so if you use for example a BorderLayout, setBounds() is not used by the LayoutManager, instead component placement is decided by East,West,South,North,Center.

For the NullLayoutManager (in case you used new JPanel(null)) however, each component has to have an x and y coordinate. Stupid Sidenote: if your UI would be three-dimensional there would also be a z coordinate.

So with public void Component.setBounds(int x, int y, int width, int height) you specify where your component is placed and how many pixel it is wide and high.

Here's an example:

import java.awt.Dimension;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;

public class JTableInNullLayout
{
  public static void main(String[] argv) throws Exception {

      JPanel panel = new JPanel(null);

      JLabel helloLabel = new JLabel("Hello world!");
      helloLabel.setBounds( 10, 50, 60, 20 ); // x, y, width, height
      panel.add(helloLabel);

      JFrame frame = new JFrame();
      frame.add(panel);
      frame.setPreferredSize( new Dimension(200,200));
      frame.pack();
      frame.setVisible(true);
  }
}

Suppose you have this file:

$ cat /tmp/test.txt
Line 1
    Line 2 has leading space
Line 3 followed by blank line

Line 5 (follows a blank line) and has trailing space    
Line 6 has no ending CR

There are four elements that will alter the meaning of the file output read by many Bash solutions:

1. The blank line 4;
2. Leading or trailing spaces on two lines;
3. Maintaining the meaning of individual lines (i.e., each line is a record);
4. The line 6 not terminated with a CR.

If you want the text file line by line including blank lines and terminating lines without CR, you must use a while loop and you must have an alternate test for the final line.

Here are the methods that may change the file (in comparison to what cat returns):

1) Lose the last line and leading and trailing spaces:

$ while read -r p; do printf "%s\n" "'$p'"; done </tmp/test.txt
'Line 1'
'Line 2 has leading space'
'Line 3 followed by blank line'
''
'Line 5 (follows a blank line) and has trailing space'

(If you do while IFS= read -r p; do printf "%s\n" "'$p'"; done </tmp/test.txt instead, you preserve the leading and trailing spaces but still lose the last line if it is not terminated with CR)

2) Using process substitution with cat will reads the entire file in one gulp and loses the meaning of individual lines:

$ for p in "$(cat /tmp/test.txt)"; do printf "%s\n" "'$p'"; done
'Line 1
    Line 2 has leading space
Line 3 followed by blank line

Line 5 (follows a blank line) and has trailing space    
Line 6 has no ending CR'

(If you remove the " from $(cat /tmp/test.txt) you read the file word by word rather than one gulp. Also probably not what is intended...)

The most robust and simplest way to read a file line-by-line and preserve all spacing is:

$ while IFS= read -r line || [[ -n $line ]]; do printf "'%s'\n" "$line"; done </tmp/test.txt
'Line 1'
'    Line 2 has leading space'
'Line 3 followed by blank line'
''
'Line 5 (follows a blank line) and has trailing space    '
'Line 6 has no ending CR'

If you want to strip leading and trading spaces, remove the IFS= part:

$ while read -r line || [[ -n $line ]]; do printf "'%s'\n" "$line"; done </tmp/test.txt
'Line 1'
'Line 2 has leading space'
'Line 3 followed by blank line'
''
'Line 5 (follows a blank line) and has trailing space'
'Line 6 has no ending CR'

(A text file without a terminating \n, while fairly common, is considered broken under POSIX. If you can count on the trailing \n you do not need || [[ -n $line ]] in the while loop.)

More at the BASH FAQ

If:

X is image width,
Y is image height,

then:

img {
    position: absolute;
    top: 50%;
    left: 50%;
    margin-left: -(X/2)px;
    margin-top: -(Y/2)px;
}

But keep in mind this solution is valid only if the only element on your site will be this image. I suppose that's the case here.

Using this method gives you the benefit of fluidity. It won't matter how big (or small) someone's screen is. The image will always stay in the middle.

My fix was to remove the double quotes that I had enclosed the JAVA_HOME path in.

Instead of declaring JAVA_HOME as "C\Program Files..."

I removed the " and declared JAVA_HOME as C\Program Files...

I am on Win 7, x64

drop returns a new array so that is why it choked in the og post; I had a similar requirement to rename some column headers and deleted some rows due to an ill formed csv file converted to Dataframe, so after reading this post I used:

newList = pd.DataFrame(newList)
newList.columns = ['Area', 'Price']
print(newList)
# newList = newList.drop(0)
# newList = newList.drop(len(newList))
newList = newList[1:-1]
print(newList)

and it worked great, as you can see with the two commented out lines above I tried the drop.() method and it work but not as kool and readable as using [n:-n], hope that helps someone, thanks.

As a follow up to Shubham's great answer I like to suggest using enum values instead of strings. Please take a look at the documentation of the TestLogging class.

import org.gradle.api.tasks.testing.logging.TestExceptionFormat
import org.gradle.api.tasks.testing.logging.TestLogEvent

tasks.withType(Test) {
    testLogging {
        events TestLogEvent.FAILED,
               TestLogEvent.PASSED,
               TestLogEvent.SKIPPED,
               TestLogEvent.STANDARD_ERROR,
               TestLogEvent.STANDARD_OUT
        exceptionFormat TestExceptionFormat.FULL
        showCauses true
        showExceptions true
        showStackTraces true
    }
}

To anyone that wants to Fast Forward they are not on to another remote branch (including itself) without checking out that branch, you can do:

git fetch origin master:other

This basically fast forwards the index of other to origin/master if you are not on other branch. You can fast forward multiple branches this way.

If you working on another branch for some time, and wanted to update stale branches from remote to their respective head:

git fetch origin master:master other:other etc:etc

Bootstrap 2 CSS solution:

.collapse {  transition: height 0.01s; }  

NB: setting transition: none disables the collapse functionnality.

Bootstrap 4 solution:

.collapsing {
  transition: none !important;
}

You can put the values as the table's keys. For example:

function addToSet(set, key)
    set[key] = true
end

function removeFromSet(set, key)
    set[key] = nil
end

function setContains(set, key)
    return set[key] ~= nil
end

There's a more fully-featured example here.

You should not try to do this directly. Design your tasks to work with a CancellationToken, and cancel them this way.

In addition, I would recommend changing your main thread to function via a CancellationToken as well. Calling Thread.Abort() is a bad idea - it can lead to various problems that are very difficult to diagnose. Instead, that thread can use the same Cancellation that your tasks use - and the same CancellationTokenSource can be used to trigger the cancellation of all of your tasks and your main thread.

This will lead to a far simpler, and safer, design.

Just wanted to add to this, you can have the :not selector in oldIE using selectivizr: http://selectivizr.com/

Since you're transferring data in xml, you could also (un)marshal directly from/to pojos.

There's an example (and more info) in the jersey user guide, which I copy here:

POJO with JAXB annotations:

@XmlRootElement
public class Planet {
    public int id;
    public String name;
    public double radius;
}

Resource:

@Path("planet")
public class Resource {

    @GET
    @Produces(MediaType.APPLICATION_XML)
    public Planet getPlanet() {
        Planet p = new Planet();
        p.id = 1;
        p.name = "Earth";
        p.radius = 1.0;

        return p;
    }

    @POST
    @Consumes(MediaType.APPLICATION_XML)
    public void setPlanet(Planet p) {
        System.out.println("setPlanet " + p.name);
    }

}      

The xml that gets produced/consumed:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<planet>
    <id>1</id>
    <name>Earth</name>
    <radius>1.0</radius>
</planet>

One example is when you write a parser function and pass it a source pointer to read from, if the function is supposed to push that pointer forward behind the last character which has been correctly recognized by the parser. Using a reference to a pointer makes it clear then that the function will move the original pointer to update its position.

In general, you use references to pointers if you want to pass a pointer to a function and let it move that original pointer to some other position instead of just moving a copy of it without affecting the original.

I am assuming you are using Eclipse as your developing environment.

Eclipse Juno, Indigo and Kepler when using the bundled maven version(m2e), are not suppressing the message SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". This behaviour is present from the m2e version 1.1.0.20120530-0009 and onwards.

Although, this is indicated as an error your logs will be saved normally. The highlighted error will still be present until there is a fix of this bug. More about this in the m2e support site.

The current available solution is to use an external maven version rather than the bundled version of Eclipse. You can find about this solution and more details regarding this bug in the question below which i believe describes the same problem you are facing.

SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". error

You can turn the color picker into an application by following the guide here:

http://hints.macworld.com/article.php?story=20060408050920158

From the guide:

Simply fire up AppleScript (Applications -> AppleScript Editor) and enter this text:

choose color

Now, save it as an application (File -> Save As, and set the File Format pop-up to Application), and you're done

You can use these tools:

• PyChecker
• Pyflakes
• Pylint

Use somethings like this :

public static class PropertyExtension{       

   public static void SetPropertyValue(this object p_object, string p_propertyName, object value)
   {
    PropertyInfo property = p_object.GetType().GetProperty(p_propertyName);
    property.SetValue(p_object, Convert.ChangeType(value, property.PropertyType), null);
   }
}

or

public static class PropertyExtension{       

   public static void SetPropertyValue(this object p_object, string p_propertyName, object value)
   {
    PropertyInfo property = p_object.GetType().GetProperty(p_propertyName);
    Type t = Nullable.GetUnderlyingType(property.PropertyType) ?? property.PropertyType;
    object safeValue = (value == null) ? null : Convert.ChangeType(value, t);

    property.SetValue(p_object, safeValue, null);
   }
}

Google threw out this page to the "image fallback html" keywords, but because non of the above helped me, and I was looking for a "svg fallback support for IE below 9", I kept on searching and this is what I found:

<img src="base-image.svg" alt="picture" />
<!--[if (lte IE 8)|(!IE)]><image src="fallback-image.png" alt="picture" /><![endif]-->

It might be off-topic, but it resolved my own issue and it might help someone else too.

Create a new toolbar and add the commands

• Edit.SelectionComment
• Edit.SelectionUncomment

Select your custom tookbar to show it.

You will then see the icons as mention by moriartyn

<iframe width="560" height="315" 
        src="https://www.youtube.com/embed/9IILMHo4RCQ?rel=0&amp;controls=0&amp;showinfo=0&amp;autoplay=1" 
        frameborder="0" allowfullscreen></iframe>

You can unbind your handler with .off, but there's a caveat; if you're doing this just prevent the handler from being triggered again while it's already running, you need to defer rebinding the handler.

For example, consider this code, which uses a 5-second hot sleep to simulate something synchronous and computationally expensive being done from within the handler (like heavy DOM manipulation, say):

<button id="foo">Click Me!</div>
<script>
    function waitForFiveSeconds() {
        var startTime = new Date();
        while (new Date() - startTime < 5000) {}
    }
    $('#foo').click(function handler() {
        // BAD CODE, DON'T COPY AND PASTE ME!
        $('#foo').off('click');
        console.log('Hello, World!');
        waitForFiveSeconds();
        $('#foo').click(handler);
    });
</script>

This won't work. As you can see if you try it out in this JSFiddle, if you click the button while the handler is already executing, the handler will execute a second time once the first execution finishes. What's more, at least in Chrome and Firefox, this would be true even if you didn't use jQuery and used addEventListener and removeEventListener to add and remove the handler instead. The browser executes the handler after the first click, unbinding and rebinding the handler, and then handles the second click and checks whether there's a click handler to execute.

To get around this, you need to defer rebinding of the handler using setTimeout, so that clicks that happen while the first handler is executing will be processed before you reattach the handler.

<button id="foo">Click Me!</div>
<script>
    function waitForFiveSeconds() {
        var startTime = new Date();
        while (new Date() - startTime < 5000) {}
    }
    $('#foo').click(function handler() {
        $('#foo').off('click');
        console.log('Hello, World!');
        waitForFiveSeconds();

        // Defer rebinding the handler, so that any clicks that happened while
        // it was unbound get processed first.
        setTimeout(function () {
            $('#foo').click(handler);
        }, 0);
    });
</script>

You can see this in action at this modified JSFiddle.

Naturally, this is unnecessary if what you're doing in your handler is already asynchronous, since then you're already yielding control to the browser and letting it flush all the click events before you rebind your handler. For instance, code like this will work fine without a setTimeout call:

<button id="foo">Save Stuff</div>
<script>
    $('#foo').click(function handler() {
        $('#foo').off('click');
        $.post( "/some_api/save_stuff", function() {
            $('#foo').click(handler);
        });
    });
</script>

contentType option to false is used for multipart/form-data forms that pass files.

When one sets the contentType option to false, it forces jQuery not to add a Content-Type header, otherwise, the boundary string will be missing from it. Also, when submitting files via multipart/form-data, one must leave the processData flag set to false, otherwise, jQuery will try to convert your FormData into a string, which will fail.

Use jQuery's .serialize() method which creates a text string in standard URL-encoded notation.

You need to pass un-encoded data when using contentType: false.

Try using new FormData instead of .serialize():

  var formData = new FormData($(this)[0]);

See for yourself the difference of how your formData is passed to your php page by using console.log().

  var formData = new FormData($(this)[0]);
  console.log(formData);

  var formDataSerialized = $(this).serialize();
  console.log(formDataSerialized);

String str = "www.anywebsite.com/folder/subfolder/directory";
int index = str.lastIndexOf('/');
String lastString = str.substring(index +1);

Now lastString has the value "directory"

Probably something like this? (UNTESTED)

Sub Sample()
    Dim strWB4, strMyMacro
    strMyMacro = "Sheet1.my_macro_name"

    '
    '~~> Rest of Code
    '

    'loop through the folder and get the file names
    For Each Fil In FLD.Files
        Set x4WB = x1.Workbooks.Open(Fil)
        x4WB.Application.Visible = True

        x1.Run strMyMacro

        x4WB.Close

        Do Until IsWorkBookOpen(Fil) = False
            DoEvents
        Loop
    Next

    '
    '~~> Rest of Code
    '
End Sub

'~~> Function to check if the file is open
Function IsWorkBookOpen(FileName As String)
    Dim ff As Long, ErrNo As Long

    On Error Resume Next
    ff = FreeFile()
    Open FileName For Input Lock Read As #ff
    Close ff
    ErrNo = Err
    On Error GoTo 0

    Select Case ErrNo
    Case 0:    IsWorkBookOpen = False
    Case 70:   IsWorkBookOpen = True
    Case Else: Error ErrNo
    End Select
End Function

You can do it easily like this.

String cls=student.getStudentClass();
class_spinner.setSelection(classArray.indexOf(cls),true);

Try:

    if (textBox1.Text == "" || textBox2.Text == "")
    {
        // do something..
    }

Instead of:

    if (textBox1.Text == string.Empty || textBox2.Text == string.Empty)
    {
        // do something..
    }

Because string.Empty is different than - "".

According to this article, if you would like to have the same precision of DateTime using DateTime2 you simply have to use DateTime2(3). This should give you the same precision, take up one fewer bytes, and provide an expanded range.

After quite some time trying other Googled "solutions", the only thing that worked for me, after setting the ANDROID_SDK_ROOT environment variable on Windows, and also adding and removing ANDROID_HOME and ANDROID_SDK_HOME variables, was Xerox23's answer - editing the AVD's config.ini to hardcode the value of ANDROID_SDK_ROOT into the image.sysdir.1 property.

This was using Android Studio 3.0.1 and emulator 26.1.4, launching the virtual device from the AVD Manager from within Android Studio.

I normally configure the applicationContext using Annotation based configuration rather than XML based configuration. Anyway, I believe both of them have the same priority.

*Answering your question, system variable has higher priority *

Getting profile based beans from applicationContext

• Use @Profile on a Bean

@Component
@Profile("dev")
public class DatasourceConfigForDev

Now, the profile is dev

Note : if the Profile is given as @Profile("!dev") then the profile will exclude dev and be for all others.

• Use profiles attribute in XML

<beans profile="dev">
    <bean id="DatasourceConfigForDev" class="org.skoolguy.profiles.DatasourceConfigForDev"/>
</beans>

Set the value for profile:

• Programmatically via WebApplicationInitializer interface

  In web applications, WebApplicationInitializer can be used to configure the ServletContext programmatically

@Configuration
public class MyWebApplicationInitializer implements WebApplicationInitializer {

    @Override
    public void onStartup(ServletContext servletContext) throws ServletException {
            servletContext.setInitParameter("spring.profiles.active", "dev");
    }
}

• Programmatically via ConfigurableEnvironment

  You can also set profiles directly on the environment:

    @Autowired
    private ConfigurableEnvironment env;

    // ...

    env.setActiveProfiles("dev");

• Context Parameter in web.xml

  profiles can be activated in the web.xml of the web application as well, using a context parameter:

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/app-config.xml</param-value>
    </context-param>
    <context-param>
        <param-name>spring.profiles.active</param-name>
        <param-value>dev</param-value>
    </context-param>

• JVM System Parameter

  The profile names passed as the parameter will be activated during application start-up:

  -Dspring.profiles.active=dev
  

  In IDEs, you can set the environment variables and values to use when an application runs. The following is the Run Configuration in Eclipse:

• Environment Variable

  to set via command line : export spring_profiles_active=dev

Any bean that does not specify a profile belongs to “default” profile.

The priority order is :

1. Context parameter in web.xml
2. WebApplicationInitializer
3. JVM System parameter
4. Environment variable

I've had a similar problem when building Clang from source (but not with sudo apt-get install. This might depend on the version of Ubuntu which you're running).

It might be worth checking if clang++ can find the correct locations of your C++ libraries:

Compare the results of g++ -v <filename.cpp> and clang++ -v <filename.cpp>, under "#include < ... > search starts here:".

While the accepted solution works, it is not complete. By far.

If you want to get all the keys, you need to take into consideration 2 more things:

x86 & x64 applications do not have access to the same registry. Basically x86 cannot normally access x64 registry. And some applications only register to the x64 registry.

and

some applications actually install into the CurrentUser registry instead of the LocalMachine

With that in mind, I managed to get ALL installed applications using the following code, WITHOUT using WMI

Here is the code:

List<string> installs = new List<string>();
List<string> keys = new List<string>() {
  @"SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall",
  @"SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall"
};

// The RegistryView.Registry64 forces the application to open the registry as x64 even if the application is compiled as x86 
FindInstalls(RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry64), keys, installs);
FindInstalls(RegistryKey.OpenBaseKey(RegistryHive.CurrentUser, RegistryView.Registry64), keys, installs);

installs = installs.Where(s => !string.IsNullOrWhiteSpace(s)).Distinct().ToList();
installs.Sort(); // The list of ALL installed applications



private void FindInstalls(RegistryKey regKey, List<string> keys, List<string> installed)
{
  foreach (string key in keys)
  {
    using (RegistryKey rk = regKey.OpenSubKey(key))
    {
      if (rk == null)
      {
        continue;
      }
      foreach (string skName in rk.GetSubKeyNames())
      {
        using (RegistryKey sk = rk.OpenSubKey(skName))
        {
          try
          {
            installed.Add(Convert.ToString(sk.GetValue("DisplayName")));
          }
          catch (Exception ex)
          { }
        }
      }
    }
  }
}

If you are running in a local server, such as wamp or xampp, make sure it's using the php.ini you think it is. These servers usually default to a php.ini that's not in your html docs folder.

Or alternatively, you could use this:

WHERE CHARINDEX(N'Apples', someColumn) = 0

Not sure which one performs better - you gotta test it! :-)

Marc

UPDATE: the performance seems to be pretty much on a par with the other solution (WHERE someColumn NOT LIKE '%Apples%') - so it's really just a question of your personal preference.

sudo make uninstall did the trick for me using the Ruby 2.4 tar from the official downloads page.

You could avoid the whole problem like this, I believe:

return (
    pd.read_csv(StringIO(str_of_all), sep=',', names=list('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefg')) #dtype={'A': object, 'B': object, 'C': np.float64}
    .rename(columns={'A':'STK', 'B':'TOpen', 'C':'TPCLOSE', 'D':'TPrice', 'E':'THigh', 'F':'TLow', 'I':'TVol', 'J':'TAmt', 'e':'TDate', 'f':'TTime'}, inplace=True)
    .ix[:,[0,3,2,1,4,5,8,9,30,31]]
    .assign(
        TClose=lambda df: df['TPrice'],
        RT=lambda df: 100 * (df['TPrice']/quote_df['TPCLOSE'] - 1),
        TVol=lambda df: df['TVol']/TVOL_SCALE,
        TAmt=lambda df: df['TAmt']/TAMT_SCALE,
        STK_ID=lambda df: df['STK'].str.slice(13,19),
        STK_Name=lambda df: df['STK'].str.slice(21,30)#.decode('gb2312'),
        TDate=lambda df: df.TDate.map(lambda x: x[0:4]+x[5:7]+x[8:10]),
    )
)

Using Assign. From the documentation: Assign new columns to a DataFrame, returning a new object (a copy) with all the original columns in addition to the new ones.

See Tom Augspurger's article on method chaining in pandas: https://tomaugspurger.github.io/method-chaining

GAC = Global Assembly Cache

Let's break it down:

• global - applies to the entire machine
• assembly - what .NET calls its code-libraries (DLLs)
• cache - a place to store things for faster/common access

So the GAC must be a place to store code libraries so they're accessible to all applications running on the machine.

From the npm documentation:

The main field is a module ID that is the primary entry point to your program. That is, if your package is named foo, and a user installs it, and then does require("foo"), then your main module's exports object will be returned.

This should be a module ID relative to the root of your package folder.

For most modules, it makes the most sense to have a main script and often not much else.

To put it short:

1. You only need a main parameter in your package.json if the entry point to your package differs from index.js in its root folder. For example, people often put the entry point to lib/index.js or lib/<packagename>.js, in this case the corresponding script must be described as main in package.json.
2. You can't have two scripts as main, simply because the entry point require('yourpackagename') must be defined unambiguously.

i did this and this returned the number of files in the folder(Attack_Data)...this works fine.

import os
def fcount(path):
    #Counts the number of files in a directory
    count = 0
    for f in os.listdir(path):
        if os.path.isfile(os.path.join(path, f)):
            count += 1

    return count
path = r"C:\Users\EE EKORO\Desktop\Attack_Data" #Read files in folder
print (fcount(path))

here is an example, where the length of the array is changed during execution of the loop

import java.util.ArrayList;
public class VariableArrayLengthLoop {

public static void main(String[] args) {

    //create new ArrayList
    ArrayList<String> aListFruits = new ArrayList<String>();

    //add objects to ArrayList
    aListFruits.add("Apple");
    aListFruits.add("Banana");
    aListFruits.add("Orange");
    aListFruits.add("Strawberry");

    //iterate ArrayList using for loop
    for(int i = 0; i < aListFruits.size(); i++){

        System.out.println( aListFruits.get(i) + " i = "+i );
         if ( i == 2 ) {
                aListFruits.add("Pineapple");  
                System.out.println( "added now a Fruit to the List "); 
                }
        }
    }
}

There is a clean way to get the current URL from a Razor page or PageModel class. That is:

Url.PageLink()

Please note that I meant, the "ASP.NET Core Razor Pages", not the MVC.

I use this method when I want to print the canonical URL meta tag in the ASP.NET Core razor pages. But there is a catch. It will give you the URL which is supposed to be the right URL for that page. Let me explain.

Say, you have defined a route named "id" for your page and therefore, your URL should look like

http://example.com/product?id=34

The Url.PageLink() will give you exactly that URL as shown above.

Now, if the user adds anything extra on that URL, say,

http://example.com/product?id=34&somethingElse

Then, you will not get that "somethingElse" from this method. And that is why it is exactly good for printing canonical URL meta tag in the HTML page.

Collection initializers are only available in VB.NET 2010, released 2010-04-12:

Dim theVar = New List(Of String) From { "one", "two", "three" }

If you need a name for the csv columns, you can use this method

 $example= array_map(function($v) {$column = str_getcsv($v, ";");return array("foo" => $column[0],"bar" => $column[1]);},file('file.csv'));

test using APscheduler:

from apscheduler.schedulers.background import BackgroundScheduler
import datetime

dt = datetime.datetime
Future = dt.now() + datetime.timedelta(milliseconds=2550)  # 2.55 seconds from now testing start accuracy

def myjob1():
    print('started job 1: ' + str(dt.now())[:-3])  # timed to millisecond because thats where it varies
    time.sleep(5)
    print('job 1 half at: ' + str(dt.now())[:-3])
    time.sleep(5)
    print('job 1 done at: ' + str(dt.now())[:-3])
def myjob2():
    print('started job 2: ' + str(dt.now())[:-3])
    time.sleep(5)
    print('job 2 half at: ' + str(dt.now())[:-3])
    time.sleep(5)
    print('job 2 done at: ' + str(dt.now())[:-3])

print(' current time: ' + str(dt.now())[:-3])
print('  do job 1 at: ' + str(Future)[:-3] + ''' 
  do job 2 at: ''' + str(Future)[:-3])
sched.add_job(myjob1, 'date', run_date=Future)
sched.add_job(myjob2, 'date', run_date=Future)

i got these results. which proves they are running at the same time.

 current time: 2020-12-15 01:54:26.526
  do job 1 at: 2020-12-15 01:54:29.072  # i figure these both say .072 because its 1 line of print code
  do job 2 at: 2020-12-15 01:54:29.072
started job 2: 2020-12-15 01:54:29.075  # notice job 2 started before job 1, but code calls job 1 first.
started job 1: 2020-12-15 01:54:29.076  
job 2 half at: 2020-12-15 01:54:34.077  # halfway point on each job completed same time accurate to the millisecond
job 1 half at: 2020-12-15 01:54:34.077
job 1 done at: 2020-12-15 01:54:39.078  # job 1 finished first. making it .004 seconds faster.
job 2 done at: 2020-12-15 01:54:39.091  # job 2 was .002 seconds faster the second test

Using double quotes for HTML

i.e.

<div class="colorFont"></div>

Using single quotes for JavaScript

i.e.

$('#container').addClass('colorFont');
$('<div class="colorFont2></div>');

You are declaring a local variable, not a class variable. To set an instance variable (attribute), use

class Example(object):
    def the_example(self):
        self.itsProblem = "problem"  # <-- remember the 'self.'

theExample = Example()
theExample.the_example()
print(theExample.itsProblem)

To set a class variable (a.k.a. static member), use

class Example(object):
    def the_example(self):
        Example.itsProblem = "problem"
        # or, type(self).itsProblem = "problem"
        # depending what you want to do when the class is derived.

Similar to @Aaron Digulla's suggestion except that I would suggest a graphics design tool, select the base color, in your case the background color, then adjust the Hue, Saturation and Value. Using this you can create color swatches very easily. Paint.Net is free and I use it all the time for this and also the pay-for-tools will also do this.

Passable for getting multiple values with scanf()

int r,m,v,i,e,k;

scanf("%d%d%d%d%d%d",&r,&m,&v,&i,&e,&k);

The fastest way if your keys are in an SSH agent:

$ ssh-add -L | ssh-keygen -E md5 -lf /dev/stdin

Each key in the agent will be printed as:

4096 MD5:8f:c9:dc:40:ec:9e:dc:65:74:f7:20:c1:29:d1:e8:5a /Users/cmcginty/.ssh/id_rsa (RSA)

one of best solution enjoyed it ;)

  public DataTable GetContentAsDataTable(bool IgnoreHideColumns=false)
        {
            try
            {
                if (dgv.ColumnCount == 0) return null;
                DataTable dtSource = new DataTable();
                foreach (DataGridViewColumn col in dgv.Columns)
                {
                    if (IgnoreHideColumns & !col.Visible) continue;
                    if (col.Name == string.Empty) continue;
                    dtSource.Columns.Add(col.Name, col.ValueType);
                    dtSource.Columns[col.Name].Caption = col.HeaderText;
                }
                if (dtSource.Columns.Count == 0) return null;
                foreach (DataGridViewRow row in dgv.Rows)
                {
                    DataRow drNewRow = dtSource.NewRow();
                    foreach (DataColumn  col in dtSource .Columns)
                    {
                        drNewRow[col.ColumnName] = row.Cells[col.ColumnName].Value;
                    }
                    dtSource.Rows.Add(drNewRow);
                }
                return dtSource;
            }
            catch { return null; }
        }

Following syntax may help for adding a main page and related subpages for doxygen:

/*! \mainpage Drawing Shapes
 *
 * This project helps user to draw shapes.
 * Currently two types of shapes can be drawn:
 * - \subpage drawingRectanglePage "How to draw rectangle?"
 *
 * - \subpage drawingCirclePage "How to draw circle?"
 *
 */ 

/*! \page drawingRectanglePage How to draw rectangle?
 *
 * Lorem ipsum dolor sit amet
 *
 */

/*! \page drawingCirclePage How to draw circle?
 *
 * This page is about how to draw a circle.
 * Following sections describe circle:
 * - \ref groupCircleDefinition "Definition of Circle"
 * - \ref groupCircleClass "Circle Class"
 */

Creating groups as following also help for designing pages:

/** \defgroup groupCircleDefinition Circle Definition
 * A circle is a simple shape in Euclidean geometry.
 * It is the set of all points in a plane that are at a given distance from a given point, the centre;
 * equivalently it is the curve traced out by a point that moves so that its distance from a given point is constant.
 * The distance between any of the points and the centre is called the radius.
 */

An example can be found here

This is quick Bash command, that you're probably searching for, will print only a basename of the remote repository:

Where you fetch from:

basename $(git remote show -n origin | grep Fetch | cut -d: -f2-)

Alternatively where you push to:

basename $(git remote show -n origin | grep Push | cut -d: -f2-)

Especially the -n option makes the command much quicker.

Does anyone else else think it's a waste to convert these strings to date/time objects for what is, in the end, a simple text transformation? If you're certain the incoming dates will be valid, you can just use:

>>> ddmmyyyy = "21/12/2008"
>>> yyyymmdd = ddmmyyyy[6:] + "-" + ddmmyyyy[3:5] + "-" + ddmmyyyy[:2]
>>> yyyymmdd
'2008-12-21'

This will almost certainly be faster than the conversion to and from a date.

Use:

dqote='"'
sqote="'"

Use the '+' operator and dqote and squote variables to get what you need.

If I want sed -e s/",u'"/",'"/g -e s/^"u'"/"'"/, you can try the following:

dqote='"'
sqote="'"
cmd1="sed -e s/" + dqote + ",u'" + dqote + "/" + dqote + ",'" + dqote + '/g -e s/^"u' + sqote + dqote + '/' + dqote + sqote + dqote + '/'

The Charset used in the POST will match that of the Charset specified in the HTML hosting the form. Hence if your form is sent using UTF-8 encoding that is the encoding used for the posted content. The URL encoding is applied after the values are converted to the set of octets for the character encoding.

@Luke Peterson: There's a simpler way to get .box file.

Just go to https://atlas.hashicorp.com/boxes/search, search for the box you'd like to download. Notice the URL of the box, e.g:

https://atlas.hashicorp.com/ubuntu/boxes/trusty64/versions/20150530.0.1

Then you can download this box using URL like this:

https://vagrantcloud.com/ubuntu/boxes/trusty64/versions/20150530.0.1/providers/virtualbox.box

I tried and successfully download all the boxes I need. Hope that help.

 public static int? Timesaday { get; set; } = null;

OR

 public static Nullable<int> Timesaday { get; set; }

or

 public static int? Timesaday = null;

or

 public static int? Timesaday

or just

 public static int? Timesaday { get; set; } 


    static void Main(string[] args)
    {


    Console.WriteLine(Timesaday == null);

     //you also can check using 
     Console.WriteLine(Timesaday.HasValue);

        Console.ReadKey();
    }

The null keyword is a literal that represents a null reference, one that does not refer to any object. In programming, nullable types are a feature of the type system of some programming languages which allow the value to be set to the special value NULL instead of the usual possible values of the data type.

https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/keywords/null https://en.wikipedia.org/wiki/Null

could it be that you forgot to load it in the document ready function?

$(document).ready(function () {

    //your jQuery function
});

I found a good description at Markdown Cheatsheet:

Code blocks are part of the Markdown spec, but syntax highlighting isn't.

However, many renderers -- like GitHub's and Markdown Here -- support syntax highlighting. Which languages are supported and how those language names should be written will vary from renderer to renderer. Markdown Here supports highlighting for dozens of languages (and not-really-languages, like diffs and HTTP headers); to see the complete list, and how to write the language names, see the highlight.js demo page.

Although I could not find any official GitHub documentation about using highlight.js, I've tested lots of languages and seemed to be working

To see list of languages I used https://github.com/highlightjs/highlight.js/blob/master/SUPPORTED_LANGUAGES.md

Some shell samples:

Shell:      console, shell
Bash:       bash, sh, zsh
PowerShell: powershell, ps
DOS:        dos, bat, cmd

Example:

```bat
cd \
copy a b
ping 192.168.0.1
```

Just a thought, but Have you tried using application.undo

This will set the values back again. You can then simply read the original value. It should not be too difficult to store the new values first, so you change them back again if you like.

You dont need to give column names manually in xaml. Just set AutoGenerateColumns property to true and your list will be automatically binded to DataGrid. refer code. XAML Code:

<Grid>
    <DataGrid x:Name="MyDatagrid" AutoGenerateColumns="True" Height="447" HorizontalAlignment="Left" Margin="20,85,0,0" VerticalAlignment="Top" Width="799"  ItemsSource="{Binding Path=ListTest, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"  CanUserAddRows="False"> </Grid>

C#

Public Class Test 
{
    public string m_field1_Test{get;set;}
    public string m_field2_Test { get; set; }
    public Test()
    {
        m_field1_Test = "field1";
        m_field2_Test = "field2";
    }
    public MainWindow()
    {

        listTest = new List<Test>();

        for (int i = 0; i < 10; i++)
        {
            obj = new Test();
            listTest.Add(obj);

        }

        this.MyDatagrid.ItemsSource = ListTest;

        InitializeComponent();

    }

If you want to disable a set of, or say a particular kind of view.Let's say you want to disable a fixed number of buttons with some particular text of or no text then you can use array of that type and loop through the array elements while disabling the buttons using setEnabled(false) property You can do it on a function call like this:

public void disable(){
        for(int i=0;i<9;i++){
                if(bt[i].getText().equals("")){//Button Text condition
                    bt[i].setEnabled(false);
            }
        }
}

OP asked specifically about regexes since it would appear there's concern for a number of other characters as well as newlines, but for those just wanting strip out newlines, you don't even need to go to a regex. You can simply do:

select replace(field,E'\n','');

I think this is an SQL-standard behavior, so it should extend back to all but perhaps the very earliest versions of Postgres. The above tested fine for me in 9.4 and 9.2

enabledBorder: OutlineInputBorder(
  borderRadius: BorderRadius.circular(10.0),
  borderSide: BorderSide(color: Colors.red)
),

You hide Bootstrap modals with:

$('#modal').modal('hide');

Saying $().hide() makes the matched element invisible, but as far as the modal-related code is concerned, it's still there. See the Methods section in the Modals documentation.

Alternatively, If you are too lazy to write the SQL query. Then this solution is for you.

1. Open phpMyAdmin
2. Select desired Table
3. Click on Operations tab
4. Set your desired initial Value for AUTO_INCREMENT
5. Done..!

If it's a deeper key/value you're after and you're not dealing with arrays of keys/values at each level, you could recursively search the tree:

public static String recurseKeys(JSONObject jObj, String findKey) throws JSONException {
    String finalValue = "";
    if (jObj == null) {
        return "";
    }

    Iterator<String> keyItr = jObj.keys();
    Map<String, String> map = new HashMap<>();

    while(keyItr.hasNext()) {
        String key = keyItr.next();
        map.put(key, jObj.getString(key));
    }

    for (Map.Entry<String, String> e : (map).entrySet()) {
        String key = e.getKey();
        if (key.equalsIgnoreCase(findKey)) {
            return jObj.getString(key);
        }

        // read value
        Object value = jObj.get(key);

        if (value instanceof JSONObject) {
            finalValue = recurseKeys((JSONObject)value, findKey);
        }
    }

    // key is not found
    return finalValue;
}

Usage:

JSONObject jObj = new JSONObject(jsonString);
String extract = recurseKeys(jObj, "extract");

Using Map code from https://stackoverflow.com/a/4149555/2301224

The original code (I added the line numbers so can refer to them):

1  var text = ' name = oscar '
2  var dict = new Array();
3  var keyValuePair = text.split(' = ');
4  dict[ keyValuePair[0] ] = 'whatever';
5  alert( dict ); // Prints nothing.

Almost there...

• line 1: you should do a trim on text so it is name = oscar.

• line 3: okay as long as you always have spaces around your equal. It might be better to not trim in line 1. Use = and trim each keyValuePair

• add a line after 3 and before 4:

    key = keyValuePair[0];`
  

• line 4: Now becomes:

    dict[key] = keyValuePair[1];
  

• line 5: Change to:

    alert( dict['name'] );  // It will print out 'oscar'
  

I'm trying to say that the dict[keyValuePair[0]] does not work. You need to set a string to keyValuePair[0] and use that as the associative key. That is the only way I got mine to work. After you have set it up, you can either refer to it with numeric index or key in quotes.

I achieved 1600k concurrent idle socket connections, and at the same time 57k req/s on a Linux desktop (16G RAM, I7 2600 CPU). It's a single thread http server written in C with epoll. Source code is on github, a blog here.

Edit:

I did 600k concurrent HTTP connections (client & server) on both the same computer, with JAVA/Clojure . detail info post, HN discussion: http://news.ycombinator.com/item?id=5127251

The cost of a connection(with epoll):

• application need some RAM per connection
• TCP buffer 2 * 4k ~ 10k, or more
• epoll need some memory for a file descriptor, from epoll(7)

Each registered file descriptor costs roughly 90 bytes on a 32-bit kernel, and roughly 160 bytes on a 64-bit kernel.

I think the bulletproof way is:

if (typeof $.cookie('token') === 'undefined'){
 //no cookie
} else {
 //have cookie
}

Checking the type of a null, empty or undefined var always returns 'undefined'

Edit: You can get there even easier:

if (!!$.cookie('token')) {
 // have cookie
} else {
 // no cookie
}

!! will turn the falsy values to false. Bear in mind that this will turn 0 to false!

try this

in the php.ini file uncomment this

extension_dir = "./" "remove semicolon"

The height of a block element defaults to the height of the block's content. So, given something like this:

<div id="outer">
    <div id="inner">
        <p>Where is pancakes house?</p>
    </div>
</div>

#inner will grow to be tall enough to contain the paragraph and #outer will grow to be tall enough to contain #inner.

When you specify the height or width as a percentage, that's a percentage with respect to the element's parent. In the case of width, all block elements are, unless specified otherwise, as wide as their parent all the way back up to <html>; so, the width of a block element is independent of its content and saying width: 50% yields a well defined number of pixels.

However, the height of a block element depends on its content unless you specify a specific height. So there is feedback between the parent and child where height is concerned and saying height: 50% doesn't yield a well defined value unless you break the feedback loop by giving the parent element a specific height.

df = pd.DataFrame(np.arange(1,10).reshape(3,3))
df['newcol'] = pd.Series(your_2d_numpy_array)

I suppose it is better to use UTF-8 encoding in the string MD5.

public static string MD5(this string s)
{
    using (var provider = System.Security.Cryptography.MD5.Create())
    {
        StringBuilder builder = new StringBuilder();                           

        foreach (byte b in provider.ComputeHash(Encoding.UTF8.GetBytes(s)))
            builder.Append(b.ToString("x2").ToLower());

        return builder.ToString();
    }
}

There are many use cases for pointers.

Polymorphic behavior. For polymorphic types, pointers (or references) are used to avoid slicing:

class Base { ... };
class Derived : public Base { ... };

void fun(Base b) { ... }
void gun(Base* b) { ... }
void hun(Base& b) { ... }

Derived d;
fun(d);    // oops, all Derived parts silently "sliced" off
gun(&d);   // OK, a Derived object IS-A Base object
hun(d);    // also OK, reference also doesn't slice

Reference semantics and avoiding copying. For non-polymorphic types, a pointer (or a reference) will avoid copying a potentially expensive object

Base b;
fun(b);  // copies b, potentially expensive 
gun(&b); // takes a pointer to b, no copying
hun(b);  // regular syntax, behaves as a pointer

Note that C++11 has move semantics that can avoid many copies of expensive objects into function argument and as return values. But using a pointer will definitely avoid those and will allow multiple pointers on the same object (whereas an object can only be moved from once).

Resource acquisition. Creating a pointer to a resource using the new operator is an anti-pattern in modern C++. Use a special resource class (one of the Standard containers) or a smart pointer (std::unique_ptr<> or std::shared_ptr<>). Consider:

{
    auto b = new Base;
    ...       // oops, if an exception is thrown, destructor not called!
    delete b;
}

vs.

{
    auto b = std::make_unique<Base>();
    ...       // OK, now exception safe
}

A raw pointer should only be used as a "view" and not in any way involved in ownership, be it through direct creation or implicitly through return values. See also this Q&A from the C++ FAQ.

More fine-grained life-time control Every time a shared pointer is being copied (e.g. as a function argument) the resource it points to is being kept alive. Regular objects (not created by new, either directly by you or inside a resource class) are destroyed when going out of scope.

Speed

Lookups in lists are O(n), lookups in dictionaries are amortized O(1), with regard to the number of items in the data structure. If you don't need to associate values, use sets.

Memory

Both dictionaries and sets use hashing and they use much more memory than only for object storage. According to A.M. Kuchling in Beautiful Code, the implementation tries to keep the hash 2/3 full, so you might waste quite some memory.

If you do not add new entries on the fly (which you do, based on your updated question), it might be worthwhile to sort the list and use binary search. This is O(log n), and is likely to be slower for strings, impossible for objects which do not have a natural ordering.

Since you've already looked into strtok just continue down the same path and split your string using space (' ') as a delimiter, then use something as realloc to increase the size of the array containing the elements to be passed to execvp.

See the below example, but keep in mind that strtok will modify the string passed to it. If you don't want this to happen you are required to make a copy of the original string, using strcpy or similar function.

char    str[]= "ls -l";
char ** res  = NULL;
char *  p    = strtok (str, " ");
int n_spaces = 0, i;


/* split string and append tokens to 'res' */

while (p) {
  res = realloc (res, sizeof (char*) * ++n_spaces);

  if (res == NULL)
    exit (-1); /* memory allocation failed */

  res[n_spaces-1] = p;

  p = strtok (NULL, " ");
}

/* realloc one extra element for the last NULL */

res = realloc (res, sizeof (char*) * (n_spaces+1));
res[n_spaces] = 0;

/* print the result */

for (i = 0; i < (n_spaces+1); ++i)
  printf ("res[%d] = %s\n", i, res[i]);

/* free the memory allocated */

free (res);

res[0] = ls
res[1] = -l
res[2] = (null)

In my case, the file ~/.curlrc had a wrong proxy configured.

Can you show code which you use for setting date object? Anyway< you can use this code for intialisation of date:

new SimpleDateFormat("yyyy-MM-dd hh:mm:ss").parse("2011-01-01 00:00:00")

Actually, the Form Submission subsection of the current HTML5 draft does not allow action="". It is against the spec.

The action and formaction content attributes, if specified, must have a value that is a valid non-empty URL potentially surrounded by spaces. (emphasis added)

The quoted section in mercator's answer is a requirement on implementations, not authors. Authors must follow the author requirements. To quote How to read this specification:

In particular, there are conformance requirements that apply to producers, for example authors and the documents they create, and there are conformance requirements that apply to consumers, for example Web browsers. They can be distinguished by what they are requiring: a requirement on a producer states what is allowed, while a requirement on a consumer states how software is to act.

The change from HTML4—which did allow an empty URL—was made because “browsers do weird things with an empty action="" attribute”. Considering the reason for the change, its probably best not to do that in HTML4 either.